/mcs/class/System.Web/System.Web.UI.WebControls/GridView.cs
C# | 2547 lines | 2217 code | 290 blank | 40 comment | 610 complexity | 71bb98d501c25186906374d5692a2a09 MD5 | raw file
Possible License(s): Unlicense, Apache-2.0, LGPL-2.0, MPL-2.0-no-copyleft-exception, CC-BY-SA-3.0, GPL-2.0
- //
- // System.Web.UI.WebControls.GridView.cs
- //
- // Authors:
- // Lluis Sanchez Gual (lluis@novell.com)
- //
- // Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
- //
- // Permission is hereby granted, free of charge, to any person obtaining
- // a copy of this software and associated documentation files (the
- // "Software"), to deal in the Software without restriction, including
- // without limitation the rights to use, copy, modify, merge, publish,
- // distribute, sublicense, and/or sell copies of the Software, and to
- // permit persons to whom the Software is furnished to do so, subject to
- // the following conditions:
- //
- // The above copyright notice and this permission notice shall be
- // included in all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- //
- using System;
- using System.Collections;
- using System.Collections.Generic;
- using System.Collections.Specialized;
- using System.ComponentModel;
- using System.Web.UI;
- using System.Security.Permissions;
- using System.Text;
- using System.IO;
- using System.Reflection;
- namespace System.Web.UI.WebControls
- {
- [SupportsEventValidation]
- [DesignerAttribute ("System.Web.UI.Design.WebControls.GridViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
- [ControlValuePropertyAttribute ("SelectedValue")]
- [DefaultEventAttribute ("SelectedIndexChanged")]
- #if NET_4_0
- [DataKeyProperty ("DataKey")]
- #endif
- [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
- [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
- public class GridView: CompositeDataBoundControl, ICallbackEventHandler, ICallbackContainer, IPostBackEventHandler, IPostBackContainer, IPersistedSelector
- #if NET_4_0
- , IDataKeysControl, IDataBoundListControl, IDataBoundControl, IFieldControl
- #endif
- {
- Table table;
- GridViewRowCollection rows;
- GridViewRow bottomPagerRow;
- GridViewRow topPagerRow;
-
- IOrderedDictionary currentEditRowKeys;
- IOrderedDictionary currentEditNewValues;
- IOrderedDictionary currentEditOldValues;
-
- ITemplate pagerTemplate;
- ITemplate emptyDataTemplate;
-
- PropertyDescriptor[] cachedKeyProperties;
- #if NET_4_0
- PropertyDescriptor[] cachedSuffixKeyProperties;
- #endif
- // View state
- DataControlFieldCollection columns;
- PagerSettings pagerSettings;
-
- TableItemStyle alternatingRowStyle;
- TableItemStyle editRowStyle;
- TableItemStyle emptyDataRowStyle;
- TableItemStyle footerStyle;
- TableItemStyle headerStyle;
- TableItemStyle pagerStyle;
- TableItemStyle rowStyle;
- TableItemStyle selectedRowStyle;
- #if NET_4_0
- TableItemStyle sortedAscendingCellStyle;
- TableItemStyle sortedAscendingHeaderStyle;
- TableItemStyle sortedDescendingCellStyle;
- TableItemStyle sortedDescendingHeaderStyle;
- List <DataKey> _dataKeySuffixList;
- DataKeyArray rowSuffixKeys;
- #endif
- List <DataKey> _dataKeyList;
- DataKeyArray keys;
- DataKey oldEditValues;
- AutoGeneratedFieldProperties[] autoFieldProperties;
- string [] dataKeyNames = null;
- readonly string[] emptyKeys = new string[0];
- IEnumerator _dataEnumerator;
-
- static readonly object PageIndexChangedEvent = new object();
- static readonly object PageIndexChangingEvent = new object();
- static readonly object RowCancelingEditEvent = new object();
- static readonly object RowCommandEvent = new object();
- static readonly object RowCreatedEvent = new object();
- static readonly object RowDataBoundEvent = new object();
- static readonly object RowDeletedEvent = new object();
- static readonly object RowDeletingEvent = new object();
- static readonly object RowEditingEvent = new object();
- static readonly object RowUpdatedEvent = new object();
- static readonly object RowUpdatingEvent = new object();
- static readonly object SelectedIndexChangedEvent = new object();
- static readonly object SelectedIndexChangingEvent = new object();
- static readonly object SortedEvent = new object();
- static readonly object SortingEvent = new object();
-
- // Control state
- int pageIndex;
- int selectedIndex = -1;
- int editIndex = -1;
- int pageCount = 0;
- SortDirection sortDirection = SortDirection.Ascending;
- string sortExpression;
-
- public GridView ()
- {
- EnableModelValidation = true;
- }
-
- public event EventHandler PageIndexChanged {
- add { Events.AddHandler (PageIndexChangedEvent, value); }
- remove { Events.RemoveHandler (PageIndexChangedEvent, value); }
- }
-
- public event GridViewPageEventHandler PageIndexChanging {
- add { Events.AddHandler (PageIndexChangingEvent, value); }
- remove { Events.RemoveHandler (PageIndexChangingEvent, value); }
- }
-
- public event GridViewCancelEditEventHandler RowCancelingEdit {
- add { Events.AddHandler (RowCancelingEditEvent, value); }
- remove { Events.RemoveHandler (RowCancelingEditEvent, value); }
- }
-
- public event GridViewCommandEventHandler RowCommand {
- add { Events.AddHandler (RowCommandEvent, value); }
- remove { Events.RemoveHandler (RowCommandEvent, value); }
- }
-
- public event GridViewRowEventHandler RowCreated {
- add { Events.AddHandler (RowCreatedEvent, value); }
- remove { Events.RemoveHandler (RowCreatedEvent, value); }
- }
-
- public event GridViewRowEventHandler RowDataBound {
- add { Events.AddHandler (RowDataBoundEvent, value); }
- remove { Events.RemoveHandler (RowDataBoundEvent, value); }
- }
-
- public event GridViewDeletedEventHandler RowDeleted {
- add { Events.AddHandler (RowDeletedEvent, value); }
- remove { Events.RemoveHandler (RowDeletedEvent, value); }
- }
-
- public event GridViewDeleteEventHandler RowDeleting {
- add { Events.AddHandler (RowDeletingEvent, value); }
- remove { Events.RemoveHandler (RowDeletingEvent, value); }
- }
-
- public event GridViewEditEventHandler RowEditing {
- add { Events.AddHandler (RowEditingEvent, value); }
- remove { Events.RemoveHandler (RowEditingEvent, value); }
- }
-
- public event GridViewUpdatedEventHandler RowUpdated {
- add { Events.AddHandler (RowUpdatedEvent, value); }
- remove { Events.RemoveHandler (RowUpdatedEvent, value); }
- }
-
- public event GridViewUpdateEventHandler RowUpdating {
- add { Events.AddHandler (RowUpdatingEvent, value); }
- remove { Events.RemoveHandler (RowUpdatingEvent, value); }
- }
-
- public event EventHandler SelectedIndexChanged {
- add { Events.AddHandler (SelectedIndexChangedEvent, value); }
- remove { Events.RemoveHandler (SelectedIndexChangedEvent, value); }
- }
-
- public event GridViewSelectEventHandler SelectedIndexChanging {
- add { Events.AddHandler (SelectedIndexChangingEvent, value); }
- remove { Events.RemoveHandler (SelectedIndexChangingEvent, value); }
- }
-
- public event EventHandler Sorted {
- add { Events.AddHandler (SortedEvent, value); }
- remove { Events.RemoveHandler (SortedEvent, value); }
- }
-
- public event GridViewSortEventHandler Sorting {
- add { Events.AddHandler (SortingEvent, value); }
- remove { Events.RemoveHandler (SortingEvent, value); }
- }
-
- protected virtual void OnPageIndexChanged (EventArgs e)
- {
- if (Events != null) {
- EventHandler eh = (EventHandler) Events [PageIndexChangedEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnPageIndexChanging (GridViewPageEventArgs e)
- {
- if (Events != null) {
- GridViewPageEventHandler eh = (GridViewPageEventHandler) Events [PageIndexChangingEvent];
- if (eh != null) {
- eh (this, e);
- return;
- }
- }
- if (!IsBoundUsingDataSourceID)
- throw new HttpException (String.Format ("The GridView '{0}' fired event PageIndexChanging which wasn't handled.", ID));
- }
-
- protected virtual void OnRowCancelingEdit (GridViewCancelEditEventArgs e)
- {
- if (Events != null) {
- GridViewCancelEditEventHandler eh = (GridViewCancelEditEventHandler) Events [RowCancelingEditEvent];
- if (eh != null) {
- eh (this, e);
- return;
- }
- }
- if (!IsBoundUsingDataSourceID)
- throw new HttpException (String.Format ("The GridView '{0}' fired event RowCancelingEdit which wasn't handled.", ID));
- }
-
- protected virtual void OnRowCommand (GridViewCommandEventArgs e)
- {
- if (Events != null) {
- GridViewCommandEventHandler eh = (GridViewCommandEventHandler) Events [RowCommandEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnRowCreated (GridViewRowEventArgs e)
- {
- if (Events != null) {
- GridViewRowEventHandler eh = (GridViewRowEventHandler) Events [RowCreatedEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnRowDataBound (GridViewRowEventArgs e)
- {
- if (Events != null) {
- GridViewRowEventHandler eh = (GridViewRowEventHandler) Events [RowDataBoundEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnRowDeleted (GridViewDeletedEventArgs e)
- {
- if (Events != null) {
- GridViewDeletedEventHandler eh = (GridViewDeletedEventHandler) Events [RowDeletedEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnRowDeleting (GridViewDeleteEventArgs e)
- {
- if (Events != null) {
- GridViewDeleteEventHandler eh = (GridViewDeleteEventHandler) Events [RowDeletingEvent];
- if (eh != null) {
- eh (this, e);
- return;
- }
- }
- if (!IsBoundUsingDataSourceID)
- throw new HttpException (String.Format ("The GridView '{0}' fired event RowDeleting which wasn't handled.", ID));
- }
-
- protected virtual void OnRowEditing (GridViewEditEventArgs e)
- {
- if (Events != null) {
- GridViewEditEventHandler eh = (GridViewEditEventHandler) Events [RowEditingEvent];
- if (eh != null) {
- eh (this, e);
- return;
- }
- }
- if (!IsBoundUsingDataSourceID)
- throw new HttpException (String.Format ("The GridView '{0}' fired event RowEditing which wasn't handled.", ID));
- }
-
- protected virtual void OnRowUpdated (GridViewUpdatedEventArgs e)
- {
- if (Events != null) {
- GridViewUpdatedEventHandler eh = (GridViewUpdatedEventHandler) Events [RowUpdatedEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnRowUpdating (GridViewUpdateEventArgs e)
- {
- if (Events != null) {
- GridViewUpdateEventHandler eh = (GridViewUpdateEventHandler) Events [RowUpdatingEvent];
- if (eh != null) {
- eh (this, e);
- return;
- }
- }
- if (!IsBoundUsingDataSourceID)
- throw new HttpException (String.Format ("The GridView '{0}' fired event RowUpdating which wasn't handled.", ID));
- }
-
- protected virtual void OnSelectedIndexChanged (EventArgs e)
- {
- if (Events != null) {
- EventHandler eh = (EventHandler) Events [SelectedIndexChangedEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnSelectedIndexChanging (GridViewSelectEventArgs e)
- {
- if (Events != null) {
- GridViewSelectEventHandler eh = (GridViewSelectEventHandler) Events [SelectedIndexChangingEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnSorted (EventArgs e)
- {
- if (Events != null) {
- EventHandler eh = (EventHandler) Events [SortedEvent];
- if (eh != null) eh (this, e);
- }
- }
-
- protected virtual void OnSorting (GridViewSortEventArgs e)
- {
- if (Events != null) {
- GridViewSortEventHandler eh = (GridViewSortEventHandler) Events [SortingEvent];
- if (eh != null) {
- eh (this, e);
- return;
- }
- }
- if (!IsBoundUsingDataSourceID)
- throw new HttpException (String.Format ("The GridView '{0}' fired event Sorting which wasn't handled.", ID));
- }
-
-
- [WebCategoryAttribute ("Paging")]
- [DefaultValueAttribute (false)]
- public virtual bool AllowPaging {
- get {
- object ob = ViewState ["AllowPaging"];
- if (ob != null)
- return (bool) ob;
- return false;
- }
- set {
- if (value == AllowPaging)
- return;
- ViewState ["AllowPaging"] = value;
- RequireBinding ();
- }
- }
-
- [WebCategoryAttribute ("Behavior")]
- [DefaultValueAttribute (false)]
- public virtual bool AllowSorting {
- get {
- object ob = ViewState ["AllowSorting"];
- if (ob != null)
- return (bool) ob;
- return false;
- }
- set {
- if (value == AllowSorting)
- return;
- ViewState ["AllowSorting"] = value;
- RequireBinding ();
- }
- }
-
- [WebCategoryAttribute ("Styles")]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [NotifyParentProperty (true)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- public TableItemStyle AlternatingRowStyle {
- get {
- if (alternatingRowStyle == null) {
- alternatingRowStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- alternatingRowStyle.TrackViewState();
- }
- return alternatingRowStyle;
- }
- }
- [WebCategoryAttribute ("Behavior")]
- [DefaultValueAttribute (false)]
- public virtual bool AutoGenerateEditButton {
- get {
- object ob = ViewState ["AutoGenerateEditButton"];
- if (ob != null)
- return (bool) ob;
- return false;
- }
- set {
- if (value == AutoGenerateEditButton)
- return;
- ViewState ["AutoGenerateEditButton"] = value;
- RequireBinding ();
- }
- }
- [WebCategoryAttribute ("Behavior")]
- [DefaultValueAttribute (false)]
- public virtual bool AutoGenerateDeleteButton {
- get {
- object ob = ViewState ["AutoGenerateDeleteButton"];
- if (ob != null)
- return (bool) ob;
- return false;
- }
- set {
- if (value == AutoGenerateDeleteButton)
- return;
- ViewState ["AutoGenerateDeleteButton"] = value;
- RequireBinding ();
- }
- }
- [WebCategoryAttribute ("Behavior")]
- [DefaultValueAttribute (false)]
- public virtual bool AutoGenerateSelectButton {
- get {
- object ob = ViewState ["AutoGenerateSelectButton"];
- if (ob != null)
- return (bool) ob;
- return false;
- }
- set {
- if (value == AutoGenerateSelectButton)
- return;
- ViewState ["AutoGenerateSelectButton"] = value;
- RequireBinding ();
- }
- }
- [WebCategoryAttribute ("Behavior")]
- [DefaultValueAttribute (true)]
- public virtual bool AutoGenerateColumns {
- get {
- object ob = ViewState ["AutoGenerateColumns"];
- if (ob != null)
- return (bool) ob;
- return true;
- }
- set {
- if (value == AutoGenerateColumns)
- return;
- ViewState ["AutoGenerateColumns"] = value;
- RequireBinding ();
- }
- }
-
- [UrlPropertyAttribute]
- [WebCategoryAttribute ("Appearance")]
- [DefaultValueAttribute ("")]
- [EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
- public virtual string BackImageUrl {
- get {
- if (ControlStyleCreated)
- return ((TableStyle) ControlStyle).BackImageUrl;
- return String.Empty;
- }
- set { ((TableStyle) ControlStyle).BackImageUrl = value; }
- }
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- [BrowsableAttribute (false)]
- public virtual GridViewRow BottomPagerRow {
- get {
- EnsureDataBound ();
- return bottomPagerRow;
- }
- }
-
- [WebCategoryAttribute ("Accessibility")]
- [DefaultValueAttribute ("")]
- [LocalizableAttribute (true)]
- public virtual string Caption {
- get {
- object ob = ViewState ["Caption"];
- if (ob != null)
- return (string) ob;
- return String.Empty;
- }
- set { ViewState ["Caption"] = value; }
- }
-
- [WebCategoryAttribute ("Accessibility")]
- [DefaultValueAttribute (TableCaptionAlign.NotSet)]
- public virtual TableCaptionAlign CaptionAlign
- {
- get {
- object o = ViewState ["CaptionAlign"];
- if(o != null)
- return (TableCaptionAlign) o;
- return TableCaptionAlign.NotSet;
- }
- set { ViewState ["CaptionAlign"] = value; }
- }
- [WebCategoryAttribute ("Layout")]
- [DefaultValueAttribute (-1)]
- public virtual int CellPadding
- {
- get {
- if (ControlStyleCreated)
- return ((TableStyle) ControlStyle).CellPadding;
- return -1;
- }
- set { ((TableStyle) ControlStyle).CellPadding = value; }
- }
- [WebCategoryAttribute ("Layout")]
- [DefaultValueAttribute (0)]
- public virtual int CellSpacing
- {
- get {
- if (ControlStyleCreated)
- return ((TableStyle) ControlStyle).CellSpacing;
- return 0;
- }
- set { ((TableStyle) ControlStyle).CellSpacing = value; }
- }
-
- [EditorAttribute ("System.Web.UI.Design.WebControls.DataControlFieldTypeEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
- [MergablePropertyAttribute (false)]
- [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
- [DefaultValueAttribute (null)]
- [WebCategoryAttribute ("Misc")]
- public virtual DataControlFieldCollection Columns {
- get {
- if (columns == null) {
- columns = new DataControlFieldCollection ();
- columns.FieldsChanged += new EventHandler (OnFieldsChanged);
- if (IsTrackingViewState)
- ((IStateManager)columns).TrackViewState ();
- }
- return columns;
- }
- }
- [BrowsableAttribute(false)]
- #if NET_4_0
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- #endif
- public IAutoFieldGenerator ColumnsGenerator {
- get;
- set;
- }
- [DefaultValueAttribute (null)]
- [WebCategoryAttribute ("Data")]
- [TypeConverter (typeof(StringArrayConverter))]
- [EditorAttribute ("System.Web.UI.Design.WebControls.DataFieldEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
- public virtual string[] DataKeyNames {
- get {
- if (dataKeyNames != null)
- return dataKeyNames;
- return emptyKeys;
- }
- set {
- dataKeyNames = value;
- RequireBinding ();
- }
- }
- List <DataKey> DataKeyList {
- get {
- if (_dataKeyList == null)
- _dataKeyList = new List <DataKey> ();
-
- return _dataKeyList;
- }
- }
- #if NET_4_0
- List <DataKey> DataKeySuffixList {
- get {
- if (_dataKeySuffixList == null)
- _dataKeySuffixList = new List <DataKey> ();
-
- return _dataKeySuffixList;
- }
- }
- #endif
- [BrowsableAttribute (false)]
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- public virtual DataKeyArray DataKeys {
- get {
- if (keys == null) {
- keys = new DataKeyArray (DataKeyList);
- if (IsTrackingViewState)
- ((IStateManager) keys).TrackViewState ();
- }
- return keys;
- }
- }
- DataKey OldEditValues {
- get {
- if (oldEditValues == null) {
- oldEditValues = new DataKey (new OrderedDictionary ());
- }
- return oldEditValues;
- }
- }
- [WebCategoryAttribute ("Misc")]
- [DefaultValueAttribute (-1)]
- public virtual int EditIndex {
- get { return editIndex; }
- set {
- if (value == editIndex)
- return;
- editIndex = value;
- RequireBinding ();
- }
- }
-
- [WebCategoryAttribute ("Styles")]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [NotifyParentProperty (true)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- public TableItemStyle EditRowStyle {
- get {
- if (editRowStyle == null) {
- editRowStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- editRowStyle.TrackViewState();
- }
- return editRowStyle;
- }
- }
-
- [WebCategoryAttribute ("Styles")]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [NotifyParentProperty (true)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- public TableItemStyle EmptyDataRowStyle {
- get {
- if (emptyDataRowStyle == null) {
- emptyDataRowStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- emptyDataRowStyle.TrackViewState();
- }
- return emptyDataRowStyle;
- }
- }
-
- [DefaultValue (null)]
- [TemplateContainer (typeof(GridViewRow), BindingDirection.OneWay)]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [Browsable (false)]
- public virtual ITemplate EmptyDataTemplate {
- get { return emptyDataTemplate; }
- set { emptyDataTemplate = value; }
- }
-
- [LocalizableAttribute (true)]
- [WebCategoryAttribute ("Appearance")]
- [DefaultValueAttribute ("")]
- public virtual string EmptyDataText {
- get {
- object ob = ViewState ["EmptyDataText"];
- if (ob != null)
- return (string) ob;
- return String.Empty;
- }
- set {
- if (value == EmptyDataText)
- return;
- ViewState ["EmptyDataText"] = value;
- RequireBinding ();
- }
- }
-
- [WebCategoryAttribute ("Behavior")]
- [DefaultValueAttribute (false)]
- public virtual bool EnableSortingAndPagingCallbacks {
- get {
- object ob = ViewState ["EnableSortingAndPagingCallbacks"];
- if (ob != null)
- return (bool) ob;
- return false;
- }
- set {
- if (value == EnableSortingAndPagingCallbacks)
- return;
- ViewState ["EnableSortingAndPagingCallbacks"] = value;
- RequireBinding ();
- }
- }
- [MonoTODO ("Make use of it in the code")]
- [DefaultValue (true)]
- public virtual bool EnableModelValidation {
- get;
- set;
- }
-
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- [BrowsableAttribute (false)]
- public virtual GridViewRow FooterRow {
- get {
- if (table != null) {
- for (int index = table.Rows.Count - 1; index >= 0; index--) {
- GridViewRow row = (GridViewRow) table.Rows [index];
- switch (row.RowType) {
- case DataControlRowType.Separator:
- case DataControlRowType.Pager:
- continue;
- case DataControlRowType.Footer:
- return row;
- default:
- break;
- }
- }
- }
- return null;
- }
- }
-
- [WebCategoryAttribute ("Styles")]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [NotifyParentProperty (true)]
- [DefaultValue (null)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- public TableItemStyle FooterStyle {
- get {
- if (footerStyle == null) {
- footerStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- footerStyle.TrackViewState();
- }
- return footerStyle;
- }
- }
-
- [WebCategoryAttribute ("Appearance")]
- [DefaultValueAttribute (GridLines.Both)]
- public virtual GridLines GridLines {
- get {
- if (ControlStyleCreated)
- return ((TableStyle) ControlStyle).GridLines;
- return GridLines.Both;
- }
- set { ((TableStyle) ControlStyle).GridLines = value; }
- }
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- [BrowsableAttribute (false)]
- public virtual GridViewRow HeaderRow {
- get {
- if (table != null) {
- for (int index = 0, total = table.Rows.Count; index < total; index++) {
- GridViewRow row = (GridViewRow) table.Rows [index];
- switch (row.RowType) {
- case DataControlRowType.Separator:
- case DataControlRowType.Pager:
- continue;
- case DataControlRowType.Header:
- return row;
- default:
- break;
- }
- }
- }
- return null;
- }
- }
-
- [WebCategoryAttribute ("Styles")]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [NotifyParentProperty (true)]
- [DefaultValue (null)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- public TableItemStyle HeaderStyle {
- get {
- if (headerStyle == null) {
- headerStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- headerStyle.TrackViewState();
- }
- return headerStyle;
- }
- }
-
- [Category ("Layout")]
- [DefaultValueAttribute (HorizontalAlign.NotSet)]
- public virtual HorizontalAlign HorizontalAlign {
- get {
- if (ControlStyleCreated)
- return ((TableStyle) ControlStyle).HorizontalAlign;
- return HorizontalAlign.NotSet;
- }
- set { ((TableStyle) ControlStyle).HorizontalAlign = value; }
- }
- [BrowsableAttribute (false)]
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- public virtual int PageCount {
- get { return pageCount; }
- private set { pageCount = value; }
- }
- [WebCategoryAttribute ("Paging")]
- [BrowsableAttribute (true)]
- [DefaultValueAttribute (0)]
- public virtual int PageIndex {
- get { return pageIndex; }
- set {
- if (value == pageIndex)
- return;
- pageIndex = value;
- RequireBinding ();
- }
- }
-
- [DefaultValueAttribute (10)]
- [WebCategoryAttribute ("Paging")]
- public virtual int PageSize {
- get {
- object ob = ViewState ["PageSize"];
- if (ob != null)
- return (int) ob;
- return 10;
- }
- set {
- if (value == PageSize)
- return;
- ViewState ["PageSize"] = value;
- RequireBinding ();
- }
- }
-
- [WebCategoryAttribute ("Paging")]
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
- [NotifyParentPropertyAttribute (true)]
- [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
- public virtual PagerSettings PagerSettings {
- get {
- if (pagerSettings == null) {
- pagerSettings = new PagerSettings (this);
- if (IsTrackingViewState)
- ((IStateManager)pagerSettings).TrackViewState ();
- }
- return pagerSettings;
- }
- }
-
- [WebCategoryAttribute ("Styles")]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [NotifyParentProperty (true)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- public TableItemStyle PagerStyle {
- get {
- if (pagerStyle == null) {
- pagerStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- pagerStyle.TrackViewState();
- }
- return pagerStyle;
- }
- }
-
-
- [DefaultValue (null)]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [Browsable (false)]
- [TemplateContainerAttribute(typeof(GridViewRow))]
- public virtual ITemplate PagerTemplate {
- get { return pagerTemplate; }
- set { pagerTemplate = value; }
- }
-
- [DefaultValueAttribute ("")]
- [WebCategoryAttribute ("Accessibility")]
- // [TypeConverterAttribute (typeof(System.Web.UI.Design.DataColumnSelectionConverter)]
- public virtual string RowHeaderColumn {
- get {
- object ob = ViewState ["RowHeaderColumn"];
- if (ob != null)
- return (string) ob;
- return String.Empty;
- }
- set {
- if (value == RowHeaderColumn)
- return;
- ViewState ["RowHeaderColumn"] = value;
- RequireBinding ();
- }
- }
-
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- [BrowsableAttribute (false)]
- public virtual GridViewRowCollection Rows {
- get {
- EnsureChildControls ();
- if (rows == null)
- rows = new GridViewRowCollection (new ArrayList ());
- return rows;
- }
- }
-
- [WebCategoryAttribute ("Styles")]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [NotifyParentProperty (true)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- public TableItemStyle RowStyle {
- get {
- if (rowStyle == null) {
- rowStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- rowStyle.TrackViewState();
- }
- return rowStyle;
- }
- }
-
- [BrowsableAttribute (false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public virtual DataKey SelectedDataKey {
- get {
- if (DataKeyNames.Length == 0)
- throw new InvalidOperationException (String.Format ("Data keys must be specified on GridView '{0}' before the selected data keys can be retrieved. Use the DataKeyNames property to specify data keys.", ID));
- if (selectedIndex >= 0 && selectedIndex < DataKeys.Count)
- return DataKeys [selectedIndex];
- else
- return null;
- }
- }
- [MonoTODO]
- [Browsable(false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public virtual DataKey SelectedPersistedDataKey {
- get; set;
- }
- [MonoTODO]
- DataKey IPersistedSelector.DataKey {
- get { return SelectedPersistedDataKey; }
- set { SelectedPersistedDataKey = value; }
- }
-
- [BindableAttribute (true)]
- [DefaultValueAttribute (-1)]
- public virtual int SelectedIndex {
- get { return selectedIndex; }
- set {
- if (rows != null && selectedIndex >= 0 && selectedIndex < Rows.Count) {
- int oldIndex = selectedIndex;
- selectedIndex = -1;
- Rows [oldIndex].RowState = GetRowState (oldIndex);
- }
- selectedIndex = value;
- if (rows != null && selectedIndex >= 0 && selectedIndex < Rows.Count)
- Rows [selectedIndex].RowState = GetRowState (selectedIndex);
- }
- }
-
- [BrowsableAttribute (false)]
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- public virtual GridViewRow SelectedRow {
- get {
- if (selectedIndex >= 0 && selectedIndex < Rows.Count)
- return Rows [selectedIndex];
- else
- return null;
- }
- }
-
- [WebCategoryAttribute ("Styles")]
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [NotifyParentProperty (true)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- public TableItemStyle SelectedRowStyle {
- get {
- if (selectedRowStyle == null) {
- selectedRowStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- selectedRowStyle.TrackViewState();
- }
- return selectedRowStyle;
- }
- }
-
- [BrowsableAttribute (false)]
- public object SelectedValue {
- get {
- if (SelectedDataKey != null)
- return SelectedDataKey.Value;
- else
- return null;
- }
- }
-
- [WebCategoryAttribute ("Appearance")]
- [DefaultValueAttribute (false)]
- public virtual bool ShowFooter {
- get {
- object ob = ViewState ["ShowFooter"];
- if (ob != null)
- return (bool) ob;
- return false;
- }
- set {
- if (value == ShowFooter)
- return;
- ViewState ["ShowFooter"] = value;
- RequireBinding ();
- }
- }
-
- [WebCategoryAttribute ("Appearance")]
- [DefaultValueAttribute (true)]
- public virtual bool ShowHeader {
- get {
- object ob = ViewState ["ShowHeader"];
- if (ob != null)
- return (bool) ob;
- return true;
- }
- set {
- if (value == ShowHeader)
- return;
- ViewState ["ShowHeader"] = value;
- RequireBinding ();
- }
- }
-
- [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
- [BrowsableAttribute (false)]
- [DefaultValueAttribute (SortDirection.Ascending)]
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- public virtual SortDirection SortDirection {
- get { return sortDirection; }
- private set {
- if (sortDirection == value)
- return;
- sortDirection = value;
- RequireBinding ();
- }
- }
-
- [BrowsableAttribute (false)]
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- public virtual string SortExpression {
- get {
- if (sortExpression == null)
- return String.Empty;
- return sortExpression;
- }
- private set {
- if (sortExpression == value)
- return;
- sortExpression = value;
- RequireBinding ();
- }
- }
-
- [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
- [BrowsableAttribute (false)]
- public virtual GridViewRow TopPagerRow {
- get {
- EnsureDataBound ();
- return topPagerRow;
- }
- }
-
- [WebCategoryAttribute ("Accessibility")]
- [DefaultValueAttribute (true)]
- public virtual bool UseAccessibleHeader {
- get {
- object ob = ViewState ["UseAccessibleHeader"];
- if (ob != null)
- return (bool) ob;
- return true;
- }
- set {
- if (value == UseAccessibleHeader)
- return;
- ViewState ["UseAccessibleHeader"] = value;
- RequireBinding ();
- }
- }
- #if NET_4_0
- [TypeConverter (typeof(StringArrayConverter))]
- [DefaultValue (null)]
- public virtual string[] ClientIDRowSuffix {
- get;
- set;
- }
- [BrowsableAttribute(false)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
- public DataKeyArray ClientIDRowSuffixDataKeys {
- get {
- if (rowSuffixKeys == null) {
- rowSuffixKeys = new DataKeyArray (DataKeySuffixList);
- if (IsTrackingViewState)
- ((IStateManager) rowSuffixKeys).TrackViewState ();
- }
- return rowSuffixKeys;
- }
- }
- [DefaultValue (false)]
- public virtual bool EnablePersistedSelection {
- get {
- throw new NotImplementedException ();
- }
-
- set {
- throw new NotImplementedException ();
- }
- }
- IAutoFieldGenerator IFieldControl.FieldsGenerator {
- get {
- throw new NotImplementedException ();
- }
-
- set {
- throw new NotImplementedException ();
- }
- }
- [DefaultValue (false)]
- public virtual bool ShowHeaderWhenEmpty {
- get { return ViewState.GetBool ("ShowHeaderWhenEmpty", false); }
- set {
- if (value == ShowHeaderWhenEmpty)
- return;
-
- ViewState ["ShowHeaderWhenEmpty"] = value;
- RequireBinding ();
- }
- }
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- [NotifyParentProperty (true)]
- public TableItemStyle SortedAscendingCellStyle {
- get {
- if (sortedAscendingCellStyle == null) {
- sortedAscendingCellStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- ((IStateManager)sortedAscendingCellStyle).TrackViewState ();
- }
- return sortedAscendingCellStyle;
- }
- }
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- [NotifyParentProperty (true)]
- public TableItemStyle SortedAscendingHeaderStyle {
- get {
- if (sortedAscendingHeaderStyle == null) {
- sortedAscendingHeaderStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- ((IStateManager)sortedAscendingHeaderStyle).TrackViewState ();
- }
- return sortedAscendingHeaderStyle;
- }
- }
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- [NotifyParentProperty (true)]
- public TableItemStyle SortedDescendingCellStyle {
- get {
- if (sortedDescendingCellStyle == null) {
- sortedDescendingCellStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- ((IStateManager)sortedDescendingCellStyle).TrackViewState ();
- }
- return sortedDescendingCellStyle;
- }
- }
- [PersistenceMode (PersistenceMode.InnerProperty)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
- [NotifyParentProperty (true)]
- public TableItemStyle SortedDescendingHeaderStyle {
- get {
- if (sortedDescendingHeaderStyle == null) {
- sortedDescendingHeaderStyle = new TableItemStyle ();
- if (IsTrackingViewState)
- ((IStateManager)sortedDescendingHeaderStyle).TrackViewState ();
- }
- return sortedDescendingHeaderStyle;
- }
- }
- #endif
- public virtual bool IsBindableType (Type type)
- {
- return type.IsPrimitive || type == typeof (string) || type == typeof (decimal) || type == typeof (DateTime) || type == typeof (Guid);
- }
-
- // MSDN: The CreateDataSourceSelectArguments method is a helper method called by
- // the GridView control to create the DataSourceSelectArguments object that
- // contains the arguments passed to the data source. In this implementation,
- // the DataSourceSelectArguments object contains the arguments for paging operations.
- protected override DataSourceSelectArguments CreateDataSourceSelectArguments ()
- {
- DataSourceSelectArguments arg = DataSourceSelectArguments.Empty;
- DataSourceView view= GetData();
- if (AllowPaging && view.CanPage) {
- arg.StartRowIndex = PageIndex * PageSize;
- if (view.CanRetrieveTotalRowCount) {
- arg.RetrieveTotalRowCount = true;
- arg.MaximumRows = PageSize;
- } else
- arg.MaximumRows = -1;
- }
- if (IsBoundUsingDataSourceID && !String.IsNullOrEmpty (sortExpression)) {
- if (sortDirection == SortDirection.Ascending)
- arg.SortExpression = sortExpression;
- else
- arg.SortExpression = sortExpression + " DESC";
- }
-
- return arg;
- }
-
- protected virtual ICollection CreateColumns (PagedDataSource dataSource, bool useDataSource)
- {
- bool autoGenerate = AutoGenerateColumns;
- if (autoGenerate) {
- IAutoFieldGenerator fieldGenerator = ColumnsGenerator;
- if (fieldGenerator != null)
- return fieldGenerator.GenerateFields (this);
- }
-
- ArrayList fields = new ArrayList ();
-
- if (AutoGenerateEditButton || AutoGenerateDeleteButton || AutoGenerateSelectButton) {
- CommandField field = new CommandField ();
- field.ShowEditButton = AutoGenerateEditButton;
- field.ShowDeleteButton = AutoGenerateDeleteButton;
- field.ShowSelectButton = AutoGenerateSelectButton;
- fields.Add (field);
- }
- fields.AddRange (Columns);
-
- if (autoGenerate) {
- if (useDataSource)
- autoFieldProperties = CreateAutoFieldProperties (dataSource);
-
- if (autoFieldProperties != null) {
- foreach (AutoGeneratedFieldProperties props in autoFieldProperties)
- fields.Add (CreateAutoGeneratedColumn (props));
- }
- }
-
- return fields;
- }
-
- protected virtual AutoGeneratedField CreateAutoGeneratedColumn (AutoGeneratedFieldProperties fieldProperties)
- {
- return new AutoGeneratedField (fieldProperties);
- }
-
- AutoGeneratedFieldProperties[] CreateAutoFieldProperties (PagedDataSource source)
- {
- if(source == null) return null;
-
- PropertyDescriptorCollection props = source.GetItemProperties (new PropertyDescriptor[0]);
- Type prop_type = null;
-
- var retVal = new List <AutoGeneratedFieldProperties> ();
-
- if (props == null) {
- object fitem = null;
- PropertyInfo prop_item = source.DataSource.GetType().GetProperty("Item",
- BindingFlags.Instance | BindingFlags.Static |
- BindingFlags.Public, null, null,
- new Type[] { typeof(int) }, null);
-
- if (prop_item != null)
- prop_type = prop_item.PropertyType;
-
- if (prop_type == null || prop_type == typeof(object)) {
- IEnumerator en = source.GetEnumerator();
- if (en != null && en.MoveNext ()) {
- fitem = en.Current;
- _dataEnumerator = en;
- }
- if (fitem != null)
- prop_type = fitem.GetType();
- }
-
- if (fitem != null && fitem is ICustomTypeDescriptor)
- props = TypeDescriptor.GetProperties(fitem);
- else if (prop_type != null) {
- if (IsBindableType (prop_type)) {
- AutoGeneratedFieldProperties field = new AutoGeneratedFieldProperties ();
- ((IStateManager)field).TrackViewState();
- field.Name = "Item";
- field.DataField = BoundField.ThisExpression;
- field.Type = prop_type;
- retVal.Add (field);
- } else
- props = TypeDescriptor.GetProperties (prop_type);
- }
- }
-
- if (props != null && props.Count > 0) {
- foreach (PropertyDescriptor current in props) {
- if (IsBindableType (current.PropertyType) && (prop_type == null || current.ComponentType == prop_type)) {
- AutoGeneratedFieldProperties field = new AutoGeneratedFieldProperties ();
- ((IStateManager)field).TrackViewState();
- field.Name = current.Name;
- field.DataField = current.Name;
- for (int i = 0; i < DataKeyNames.Length; i++) {
- if (string.Compare (DataKeyNames [i], current.Name, StringComparison.InvariantCultureIgnoreCase) == 0) {
- field.IsReadOnly = true;
- break;
- }
- }
- field.Type = current.PropertyType;
- retVal.Add (field);
- }
- }
- }
- if (retVal.Count > 0)
- return retVal.ToArray ();
- else
- return new AutoGeneratedFieldProperties [0];
- }
-
- protected virtual GridViewRow CreateRow (int rowIndex, int dataSourceIndex, DataControlRowType rowType, DataControlRowState rowState)
- {
- GridViewRow row = new GridViewRow (rowIndex, dataSourceIndex, rowType, rowState);
- return row;
- }
-
- void RequireBinding ()
- {
- if (Initialized)
- RequiresDataBinding = true;
- }
-
- protected virtual Table CreateChildTable ()
- {
- return new ContainedTable (this);
- }
- void CreateHeaderRow (Table mainTable, DataControlField[] fields, bool dataBinding)
- {
- GridViewRow headerRow = CreateRow (-1, -1, DataControlRowType.Header, DataControlRowState.Normal);
- InitializeRow (headerRow, fields);
- OnRowCreated (new GridViewRowEventArgs (headerRow));
- mainTable.Rows.Add (headerRow);
- if (dataBinding) {
- headerRow.DataBind ();
- OnRowDataBound (new GridViewRowEventArgs (headerRow));
- }
- }
-
- protected override int CreateChildControls (IEnumerable data, bool dataBinding)
- {
- // clear GridView
- Controls.Clear ();
- table = null;
- rows = null;
- if (data == null)
- return 0;
- PagedDataSource dataSource;
- if (dataBinding) {
- DataSourceView view = GetData ();
- dataSource = new PagedDataSource ();
- dataSource.DataSource = data;
-
- if (AllowPaging) {
- dataSource.AllowPaging = true;
- dataSource.PageSize = PageSize;
- if (view.CanPage) {
- dataSource.AllowServerPaging = true;
- if (SelectArguments.RetrieveTotalRowCount)
- dataSource.VirtualCount = SelectArguments.TotalRowCount;
- }
- if (PageIndex >= dataSource.PageCount)
- pageIndex = dataSource.PageCount - 1;
- dataSource.CurrentPageIndex = PageIndex;
- }
-
- PageCount = dataSource.PageCount;
- } else {
- dataSource = new PagedDataSource ();
- dataSource.DataSource = data;
- if (AllowPaging) {
- dataSource.AllowPaging = true;
- dataSource.PageSize = PageSize;
- dataSource.CurrentPageIndex = PageIndex;
- }
- }
- bool createPager = AllowPaging && (PageCount >= 1) && PagerSettings.Visible;
- ArrayList list = new ArrayList ();
-
- // Creates the set of fields to show
- _dataEnumerator = null;
- ICollection fieldCollection = CreateColumns (dataSource, dataBinding);
- int fieldCount = fieldCollection.Count;
- DataControlField dcf;
- DataControlField[] fields = new DataControlField [fieldCount];
- fieldCollection.CopyTo (fields, 0);
-
- for (int i = 0; i < fieldCount; i++) {
- dcf = fields [i];
- dcf.Initialize (AllowSorting, this);
- if (EnableSortingAndPagingCallbacks)
- dcf.ValidateSupportsCallback ();
- }
- bool skip_first = false;
- IEnumerator enumerator;
- if (_dataEnumerator != null) {
- // replaced when creating bound columns
- enumerator = _dataEnumerator;
- skip_first = true;
- } else
- enumerator = dataSource.GetEnumerator ();
- // Main table creation
- Table mainTable = ContainedTable;
- List <DataKey> dataKeyList;
- string[] dataKeyNames;
- #if NET_4_0
- List <DataKey> dataKeySuffixList;
- string[] clientIDRowSuffix;
- #endif
- if (dataBinding) {
- dataKeyList = DataKeyList;
- dataKeyNames = DataKeyNames;
- #if NET_4_0
- dataKeySuffixList = DataKeySuffixList;
- clientIDRowSuffix = ClientIDRowSuffix;
- #endif
- } else {
- dataKeyList = null;
- dataKeyNames = null;
- #if NET_4_0
- dataKeySuffixList = null;
- clientIDRowSuffix = null;
- #endif
- }
- while (skip_first || enumerator.MoveNext ()) {
- skip_first = false;
- object obj = enumerator.Current;
-
- if (list.Count == 0) {
- if (createPager && (PagerSettings.Position == PagerPosition.Top || PagerSettings.Position == PagerPosition.TopAndBottom)) {
- topPagerRow = CreatePagerRow (fieldCount, dataSource);
- OnRowCreated (new GridViewRowEventArgs (topPagerRow));
- mainTable.Rows.Add (topPagerRow);
- if (dataBinding) {
- topPagerRow.DataBind ();
- OnRowDataBound (new GridViewRowEventArgs (topPagerRow));
- }
- if (PageCount == 1)
- topPagerRow.Visible = false;
- }
- if (ShowHeader)
- CreateHeaderRow (mainTable, fields, dataBinding);
- }
-
- DataControlRowState rstate = GetRowState (list.Count);
- GridViewRow row = CreateRow (list.Count, list.Count, DataControlRowType.DataRow, rstate);
- row.DataItem = obj;
- list.Add (row);
- InitializeRow (row, fields);
- OnRowCreated (new GridViewRowEventArgs (row));
- mainTable.Rows.Add (row);
- if (dataBinding) {
- row.DataBind ();
- if (EditIndex == row.RowIndex)
- oldEditValues = new DataKey (GetRowValues (row, true, true));
- dataKeyList.Add (new DataKey (CreateRowDataKey (row), dataKeyNames));
- #if NET_4_0
- dataKeySuffixList.Add (new DataKey (CreateRowSuffixDataKey (row), clientIDRowSuffix));
- #endif
- OnRowDataBound (new GridViewRowEventArgs (row));
- }
- }
- if (list.Count == 0) {
- #if NET_4_0
- if (ShowHeader && ShowHeaderWhenEmpty)
- CreateHeaderRow (mainTable, fields, dataBinding);
- #endif
- GridViewRow emptyRow = CreateEmptyrRow (fieldCount);
- if (emptyRow != null) {
- OnRowCreated (new GridViewRowEventArgs (emptyRow));
- mainTable.Rows.Add (emptyRow);
- if (dataBinding) {
- emptyRow.DataBind ();
- OnRowDataBound (new GridViewRowEventArgs (emptyRow));
- }
- }
- #if NET_4_0
- if (mainTable.Rows.Count == 0)
- table = null;
- #endif
- return 0;
- } else {
- GridViewRow footerRow = CreateRow (-1, -1, DataControlRowType.Footer, DataControlRowState.Normal);
- InitializeRow (footerRow, fields);
- OnRowCreated (new GridViewRowEventArgs (footerRow));
- mainTable.Rows.Add (footerRow);
- if (dataBinding) {
- footerRow.DataBind ();
- OnRowDataBound (new GridViewRowEventArgs (footerRow));
- }
- if (createPager && (PagerSettings.Position == PagerPosition.Bottom || PagerSettings.Position == PagerPosition.TopAndBottom)) {
- bottomPagerRow = CreatePagerRow (fieldCount, dataSource);
- OnRowCreated (new GridViewRowEventArgs (bottomPagerRow));
- mainTable.Rows.Add (bottomPagerRow);
- if (dataBinding) {
- bottomPagerRow.DataBind ();
- OnRowDataBound (new GridViewRowEventArgs (bottomPagerRow));
- }
- if (PageCount == 1)
- bottomPagerRow.Visible = false;
- }
- }
- rows = new GridViewRowCollection (list);
- if (!dataBinding)
- return -1;
- if (AllowPaging)
- return dataSource.DataSourceCount;
- else
- return list.Count;
- }
- Table ContainedTable {
- get {
- if (table == null) {
- table = CreateChildTable ();
- Controls.Add (table);
- }
-
- return table;
- }
- }
- protected override Style CreateControlStyle ()
- {
- TableStyle style = new TableStyle (ViewState);
- style.GridLines = GridLines.Both;
- style.CellSpacing = 0;
- return style;
- }
-
- DataControlRowState GetRowState (int index)
- {
- DataControlRowState rstate = (index % 2) == 0 ? DataControlRowState.Normal : DataControlRowState.Alternate;
- if (index == SelectedIndex)
- rstate |= DataControlRowState.Selected;
- if (index == EditIndex)
- rstate |= DataControlRowState.Edit;
- return rstate;
- }
-
- GridViewRow CreatePagerRow (int fieldCount, PagedDataSource dataSource)
- {
- GridViewRow row = CreateRow (-1, -1, DataControlRowType.Pager, DataControlRowState.Normal);
- InitializePager (row, fieldCount, dataSource);
- return row;
- }
-
- protected virtual void InitializePager (GridViewRow row, int columnSpan, PagedDataSource dataSource)
- {
- TableCell cell = new TableCell ();
- if (columnSpan > 1)
- cell.ColumnSpan = columnSpan;
-
- if (pagerTemplate != null)
- pagerTemplate.InstantiateIn (cell);
- else
- cell.Controls.Add (PagerSettings.CreatePagerControl (dataSource.CurrentPageIndex, dataSource.PageCount));
-
- row.Cells.Add (cell);
- }
-
- GridViewRow CreateEmptyrRow (int fieldCount)
- {
- if (emptyDataTemplate == null && String.IsNullOrEmpty (EmptyDataText))
- return null;
- GridViewRow row = CreateRow (-1, -1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
- TableCell cell = new TableCell ();
- cell.ColumnSpan = fieldCount;
-
- if (emptyDataTemplate != null)
- emptyDataTemplate.InstantiateIn (cell);
- else
- cell.Text = EmptyDataText;
-
- row.Cells.Add (cell);
- return row;
- }
-
- protected virtual void InitializeRow (GridViewRow row, DataControlField[] fields)
- {
- DataControlCellType ctype;
- bool accessibleHeader = false;
- switch (row.RowType) {
- case DataControlRowType.Header:
- ctype = DataControlCellType.Header;
- accessibleHeader = UseAccessibleHeader;
- break;
- case DataControlRowType.Footer:
- ctype = DataControlCellType.Footer;
- break;
- default:
- ctype = DataControlCellType.DataCell;
- break;
- }
-
- for (int n=0; n<fields.Length; n++) {
- DataControlField field = fields [n];
- DataControlFieldCell cell;
- if (((field is BoundField) && ((BoundField)field).DataField == RowHeaderColumn) || accessibleHeader)
- cell = new DataControlFieldHeaderCell (field, accessibleHeader ? TableHeaderScope.Column : TableHeaderScope.Row);
- else
- cell = new DataControlFieldCell (field);
- row.Cells.Add (cell);
- field.InitializeCell (cell, ctype, row.RowState, row.RowIndex);
- }
- }
-
- void LoadAndCacheProperties (string[] names, object dataItem, ref PropertyDescriptor[] cache)
- {
- if (cache != null)
- return;
- PropertyDescriptorCollection props = TypeDescriptor.GetProperties (dataItem);
- int len = names != null ? names.Length : 0;
- cache = new PropertyDescriptor [len];
- for (int n = 0; n < len; n++) {
- string propName = names [n];
- PropertyDescriptor p = props.Find (propName, true);
- if (p == null)
- throw new InvalidOperationException ("Property '" + propName + "' not found in object of type " + dataItem.GetType ());
- cache [n] = p;
- }
- }
- IOrderedDictionary CreateDictionaryFromProperties (PropertyDescriptor[] cache, object dataItem)
- {
- OrderedDictionary dic = new OrderedDictionary ();
- foreach (PropertyDescriptor p in cache)
- dic [p.Name] = p.GetValue (dataItem);
- return dic;
- }
-
- IOrderedDictionary CreateRowDataKey (GridViewRow row)
- {
- object dataItem = row.DataItem;
- LoadAndCacheProperties (DataKeyNames, dataItem, ref cachedKeyProperties);
- return CreateDictionaryFromProperties (cachedKeyProperties, dataItem);
- }
- #if NET_4_0
- IOrderedDictionary CreateRowSuffixDataKey (GridViewRow row)
- {
- object dataItem = row.DataItem;
- LoadAndCacheProperties (ClientIDRowSuffix, dataItem, ref cachedSuffixKeyProperties);
- return CreateDictionaryFromProperties (cachedSuffixKeyProperties, dataItem);
- }
- #endif
- IOrderedDictionary GetRowValues (GridViewRow row, bool includeReadOnlyFields, bool includePrimaryKey)
- {
- OrderedDictionary dic = new OrderedDictionary ();
- ExtractRowValues (dic, row, includeReadOnlyFields, includePrimaryKey);
- return dic;
- }
-
- protected virtual void ExtractRowValues (IOrderedDictionary fieldValues, GridViewRow row, bool includeReadOnlyFields, bool includePrimaryKey)
- {
- DataControlField field;
- foreach (TableCell cell in row.Cells) {
- DataControlFieldCell c = cell as DataControlFieldCell;
- if (c == null)
- continue;
-
- field = c.ContainingField;
- if (field != null && !field.Visible)
- continue;
-
- c.ContainingField.ExtractValuesFromCell (fieldValues, c, row.RowState, includeReadOnlyFields);
- }
- if (!includePrimaryKey && DataKeyNames != null)
- foreach (string key in DataKeyNames)
- fieldValues.Remove (key);
- }
-
- protected override HtmlTextWriterTag TagKey {
- get {
- if (EnableSortingAndPagingCallbacks)
- return HtmlTextWriterTag.Div;
- else
- return HtmlTextWriterTag.Table;
- }
- }
-
- public sealed override void DataBind ()
- {
- DataKeyList.Clear ();
- cachedKeyProperties = null;
- base.DataBind ();
- keys = new DataKeyArray (DataKeyList);
-
- GridViewRow row = HeaderRow;
- if (row != null)
- row.Visible = ShowHeader;
- row = FooterRow;
- if (row != null)
- row.Visible = ShowFooter;
- }
-
- protected internal override void PerformDataBinding (IEnumerable data)
- {
- base.PerformDataBinding (data);
- }
- protected internal virtual void PrepareControlHierarchy ()
- {
- if (table == null)
- return;
- table.Caption = Caption;
- table.CaptionAlign = CaptionAlign;
- table.CopyBaseAttributes (this);
-
- foreach (GridViewRow row in table.Rows) {
- switch (row.RowType) {
- case DataControlRowType.Header:
- if (headerStyle != null && !headerStyle.IsEmpty)
- row.ControlStyle.MergeWith(headerStyle);
- row.Visible = ShowHeader;
- break;
- case DataControlRowType.Footer:
- if (footerStyle != null && !footerStyle.IsEmpty)
- row.ControlStyle.MergeWith (footerStyle);
- row.Visible = ShowFooter;
- break;
- case DataControlRowType.Pager:
- if (pagerStyle != null && !pagerStyle.IsEmpty)
- row.ControlStyle.MergeWith (pagerStyle);
- break;
- case DataControlRowType.EmptyDataRow:
- if (emptyDataRowStyle != null && !emptyDataRowStyle.IsEmpty)
- row.ControlStyle.MergeWith (emptyDataRowStyle);
- break;
- case DataControlRowType.DataRow:
- if ((row.RowState & DataControlRowState.Edit) != 0 && editRowStyle != null && !editRowStyle.IsEmpty)
- row.ControlStyle.MergeWith (editRowStyle);
- if ((row.RowState & DataControlRowState.Selected) != 0 && selectedRowStyle != null && !selectedRowStyle.IsEmpty)
- row.ControlStyle.MergeWith (selectedRowStyle);
- if ((row.RowState & DataControlRowState.Alternate) != 0 && alternatingRowStyle != null && !alternatingRowStyle.IsEmpty)
- row.ControlStyle.MergeWith (alternatingRowStyle);
- if (rowStyle != null && !rowStyle.IsEmpty)
- row.ControlStyle.MergeWith (rowStyle);
- break;
- default:
- break;
- }
- #if NET_4_0
- string sortExpression = SortExpression;
- bool haveSorting = !String.IsNullOrEmpty (sortExpression);
- #endif
- foreach (TableCell cell in row.Cells) {
- DataControlFieldCell fcell = cell as DataControlFieldCell;
- if (fcell != null) {
- DataControlField field = fcell.ContainingField;
- if (field == null)
- continue;
- if (!field.Visible) {
- cell.Visible = false;
- continue;
- }
-
- switch (row.RowType) {
- case DataControlRowType.Header:
- if (field.HeaderStyleCreated && !field.HeaderStyle.IsEmpty)
- cell.ControlStyle.MergeWith (field.HeaderStyle);
- #if NET_4_0
- if (haveSorting)
- MergeWithSortingStyle (sortExpression, sortedAscendingHeaderStyle, sortedDescendingHeaderStyle, field, cell);
- #endif
- break;
- case DataControlRowType.Footer:
- if (field.FooterStyleCreated && !field.FooterStyle.IsEmpty)
- cell.ControlStyle.MergeWith (field.FooterStyle);
- break;
- default:
- if (field.ControlStyleCreated && !field.ControlStyle.IsEmpty) {
- foreach (Control c in cell.Controls) {
- WebControl wc = c as WebControl;
- if (wc != null)
- wc.ControlStyle.MergeWith (field.ControlStyle);
- }
- }
- if (field.ItemStyleCreated && !field.ItemStyle.IsEmpty)
- cell.ControlStyle.MergeWith (field.ItemStyle);
- #if NET_4_0
- if (haveSorting)
- MergeWithSortingStyle (sortExpression, sortedAscendingCellStyle, sortedDescendingCellStyle, field, cell);
- #endif
- break;
- }
- }
- }
- }
- }
- #if NET_4_0
- void MergeWithSortingStyle (string sortExpression, TableItemStyle ascending, TableItemStyle descending, DataControlField field, TableCell cell)
- {
- if (String.Compare (field.SortExpression, sortExpression, StringComparison.OrdinalIgnoreCase) != 0)
- return;
- cell.ControlStyle.MergeWith (SortDirection == SortDirection.Ascending ? ascending : descending);
- }
- #endif
- protected internal override void OnInit (EventArgs e)
- {
- Page page = Page;
- if (page != null)
- page.RegisterRequiresControlState (this);
- base.OnInit (e);
- }
-
- void OnFieldsChanged (object sender, EventArgs args)
- {
- RequireBinding ();
- }
-
- protected override void OnDataPropertyChanged ()
- {
- base.OnDataPropertyChanged ();
- RequireBinding ();
- }
-
- protected override void OnDataSourceViewChanged (object sender, EventArgs e)
- {
- base.OnDataSourceViewChanged (sender, e);
- RequireBinding ();
- }
-
- protected override bool OnBubbleEvent (object source, EventArgs e)
- {
- GridViewCommandEventArgs args = e as GridViewCommandEventArgs;
- if (args != null) {
- bool causesValidation = false;
- IButtonControl button = args.CommandSource as IButtonControl;
- if (button != null && button.CausesValidation) {
- Page.Validate (button.ValidationGroup);
- causesValidation = true;
- }
- OnRowCommand (args);
- string param = args.CommandArgument as string;
- if (param == null || param.Length == 0) {
- GridViewRow row = args.Row;
- if (row != null)
- param = row.RowIndex.ToString();
- }
- ProcessEvent (args.CommandName, param, causesValidation);
- return true;
- }
- return base.OnBubbleEvent (source, e);
- }
-
- void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
- {
- ValidateEvent (UniqueID, eventArgument);
- RaisePostBackEvent (eventArgument);
- }
- // This is prolly obsolete
- protected virtual void RaisePostBackEvent (string eventArgument)
- {
- GridViewCommandEventArgs args;
- int i = eventArgument.IndexOf ('$');
- if (i != -1)
- args = new GridViewCommandEventArgs (this, new CommandEventArgs (eventArgument.Substring (0, i), eventArgument.Substring (i + 1)));
- else
- args = new GridViewCommandEventArgs (this, new CommandEventArgs (eventArgument, null));
- OnRowCommand (args);
- ProcessEvent (args.CommandName, (string) args.CommandArgument, false);
- }
- void ProcessEvent (string eventName, string param, bool causesValidation)
- {
- switch (eventName) {
- case DataControlCommands.PageCommandName:
- int newIndex = -1;
- switch (param) {
- case DataControlCommands.FirstPageCommandArgument:
- newIndex = 0;
- break;
- case DataControlCommands.LastPageCommandArgument:
- newIndex = PageCount - 1;
- break;
- case DataControlCommands.NextPageCommandArgument:
- newIndex = PageIndex + 1;
- break;
- case DataControlCommands.PreviousPageCommandArgument:
- newIndex = PageIndex - 1;
- break;
- default:
- int paramIndex = 0;
- int.TryParse (param, out paramIndex);
- newIndex = paramIndex - 1;
- break;
- }
- SetPageIndex (newIndex);
- break;
-
- case DataControlCommands.FirstPageCommandArgument:
- SetPageIndex (0);
- break;
- case DataControlCommands.LastPageCommandArgument:
- SetPageIndex (PageCount - 1);
- break;
-
- case DataControlCommands.NextPageCommandArgument:
- if (PageIndex < PageCount - 1)
- SetPageIndex (PageIndex + 1);
- break;
- case DataControlCommands.PreviousPageCommandArgument:
- if (PageIndex > 0)
- SetPageIndex (PageIndex - 1);
- break;
-
- case DataControlCommands.SelectCommandName:
- SelectRow (int.Parse (param));
- break;
-
- case DataControlCommands.EditCommandName:
- SetEditRow (int.Parse (param));
- break;
-
- case DataControlCommands.UpdateCommandName:
- int editIndex = int.Parse (param);
- UpdateRow (Rows [editIndex], editIndex, causesValidation);
- break;
-
- case DataControlCommands.CancelCommandName:
- CancelEdit ();
- break;
-
- case DataControlCommands.DeleteCommandName:
- DeleteRow (int.Parse (param));
- break;
-
- case DataControlCommands.SortCommandName:
- Sort (param);
- break;
- }
- }
-
- void Sort (string newSortExpression)
- {
- SortDirection newDirection = SortDirection.Ascending;
- if (sortExpression == newSortExpression && sortDirection == SortDirection.Ascending)
- newDirection = SortDirection.Descending;
- Sort (newSortExpression, newDirection);
- }
-
- public virtual void Sort (string newSortExpression, SortDirection newSortDirection)
- {
- GridViewSortEventArgs args = new GridViewSortEventArgs (newSortExpression, newSortDirection);
- OnSorting (args);
- if (args.Cancel)
- return;
-
- if (IsBoundUsingDataSourceID) {
- EditIndex = -1;
- PageIndex = 0;
- SortExpression = args.SortExpression;
- SortDirection = args.SortDirection;
- }
-
- OnSorted (EventArgs.Empty);
- }
- #if NET_4_0
- public
- #endif
- void SelectRow (int index)
- {
- GridViewSelectEventArgs args = new GridViewSelectEventArgs (index);
- OnSelectedIndexChanging (args);
- if (!args.Cancel) {
- RequireBinding ();
- SelectedIndex = args.NewSelectedIndex;
- OnSelectedIndexChanged (EventArgs.Empty);
- }
- }
- #if NET_4_0
- public
- #endif
- void SetPageIndex (int newIndex)
- {
- GridViewPageEventArgs args = new GridViewPageEventArgs (newIndex);
- OnPageIndexChanging (args);
-
- if (args.Cancel || !IsBoundUsingDataSourceID)
- return;
-
- EndRowEdit ();
- PageIndex = args.NewPageIndex;
- OnPageIndexChanged (EventArgs.Empty);
- }
- #if NET_4_0
- public
- #endif
- void SetEditRow (int index)
- {
- GridViewEditEventArgs args = new GridViewEditEventArgs (index);
- OnRowEditing (args);
-
- if (args.Cancel || !IsBoundUsingDataSourceID)
- return;
-
- EditIndex = args.NewEditIndex;
- }
-
- void CancelEdit ()
- {
- GridViewCancelEditEventArgs args = new GridViewCancelEditEventArgs (EditIndex);
- OnRowCancelingEdit (args);
-
- if (args.Cancel || !IsBoundUsingDataSourceID)
- return;
- EndRowEdit ();
- }
- [MonoTODO ("Support two-way binding expressions")]
- public virtual void UpdateRow (int rowIndex, bool causesValidation)
- {
- if (rowIndex != EditIndex)
- throw new NotSupportedException ();
-
- GridViewRow row = Rows [rowIndex];
- UpdateRow (row, rowIndex, causesValidation);
- }
- void UpdateRow (GridViewRow row, int rowIndex, bool causesValidation)
- {
- if (causesValidation && Page != null && !Page.IsValid)
- return;
- currentEditOldValues = CopyOrderedDictionary (OldEditValues.Values);
- currentEditRowKeys = CopyOrderedDictionary (DataKeys [rowIndex].Values);
- currentEditNewValues = GetRowValues (row, false, false);
-
- GridViewUpdateEventArgs args = new GridViewUpdateEventArgs (rowIndex, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
- OnRowUpdating (args);
-
- if (args.Cancel || !IsBoundUsingDataSourceID)
- return;
-
- DataSourceView view = GetData ();
- if (view == null)
- throw new HttpException ("The DataSourceView associated to data bound control was null");
- view.Update (currentEditRowKeys, currentEditNewValues, currentEditOldValues, new DataSourceViewOperationCallback (UpdateCallback));
- }
- static IOrderedDictionary CopyOrderedDictionary (IOrderedDictionary sourceDic)
- {
- OrderedDictionary copyDic = new OrderedDictionary ();
- foreach (object key in sourceDic.Keys)
- copyDic.Add (key, sourceDic [key]);
- return copyDic;
- }
- bool UpdateCallback (int recordsAffected, Exception exception)
- {
- GridViewUpdatedEventArgs dargs = new GridViewUpdatedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
- OnRowUpdated (dargs);
- if (!dargs.KeepInEditMode)
- EndRowEdit ();
- return dargs.ExceptionHandled;
- }
-
- public virtual void DeleteRow (int rowIndex)
- {
- GridViewRow row = Rows [rowIndex];
- currentEditRowKeys = CopyOrderedDictionary (DataKeys [rowIndex].Values);
- currentEditNewValues = GetRowValues (row, true, true);
-
- GridViewDeleteEventArgs args = new GridViewDeleteEventArgs (rowIndex, currentEditRowKeys, currentEditNewValues);
- OnRowDeleting (args);
- if (args.Cancel || !IsBoundUsingDataSourceID)
- return;
-
- RequireBinding ();
- DataSourceView view = GetData ();
- if (view != null)
- view.Delete (currentEditRowKeys, currentEditNewValues, new DataSourceViewOperationCallback (DeleteCallback));
- else {
- GridViewDeletedEventArgs dargs = new GridViewDeletedEventArgs (0, null, currentEditRowKeys, currentEditNewValues);
- OnRowDeleted (dargs);
- }
- }
- bool DeleteCallback (int recordsAffected, Exception exception)
- {
- GridViewDeletedEventArgs dargs = new GridViewDeletedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditNewValues);
- OnRowDeleted (dargs);
- return dargs.ExceptionHandled;
- }
-
- void EndRowEdit ()
- {
- EditIndex = -1;
- oldEditValues = new DataKey (new OrderedDictionary ());
- currentEditRowKeys = null;
- currentEditOldValues = null;
- currentEditNewValues = null;
- }
- protected internal override void LoadControlState (object ob)
- {
- if (ob == null)
- return;
- object[] state = (object[]) ob;
- base.LoadControlState (state[0]);
- pageIndex = (int) state[1];
- selectedIndex = (int) state[2];
- editIndex = (int) state[3];
- sortExpression = (string) state[4];
- sortDirection = (SortDirection) state[5];
- DataKeyNames = (string []) state [6];
- if (state [7] != null)
- LoadDataKeyArrayState ((object []) state [7], out keys);
- if (state [8] != null)
- ((IStateManager) OldEditValues).LoadViewState (state [8]);
- pageCount = (int)state [9];
- #if NET_4_0
- if (state [10] != null)
- ClientIDRowSuffix = (string[]) state [10];
- if (state [11] != null)
- LoadDataKeyArrayState ((object []) state [11], out rowSuffixKeys);
- #endif
- }
-
- protected internal override object SaveControlState ()
- {
- if (EnableSortingAndPagingCallbacks) {
- Page page = Page;
- ClientScriptManager scriptManager = page != null ? page.ClientScript : null;
- if (scriptManager != null) {
- scriptManager.RegisterHiddenField (ClientID + "_Page", PageIndex.ToString ());
- scriptManager.RegisterHiddenField (ClientID + "_SortExpression", SortExpression);
- scriptManager.RegisterHiddenField (ClientID + "_SortDirection", ((int)SortDirection).ToString());
- }
- }
- object bstate = base.SaveControlState ();
- return new object [] {
- bstate,
- pageIndex,
- selectedIndex,
- editIndex,
- sortExpression,
- sortDirection,
- DataKeyNames,
- SaveDataKeyArrayState (keys),
- (oldEditValues == null ? null : ((IStateManager)oldEditValues).SaveViewState ()),
- pageCount,
- #if NET_4_0
- ClientIDRowSuffix,
- SaveDataKeyArrayState (rowSuffixKeys)
- #endif
- };
- }
- object [] SaveDataKeyArrayState (DataKeyArray keys)
- {
- if (keys == null)
- return null;
- object [] state = new object [keys.Count];
- for (int i = 0; i < keys.Count; i++)
- state [i] = ((IStateManager) keys [i]).SaveViewState ();
- return state;
- }
- void LoadDataKeyArrayState (object [] state, out DataKeyArray keys)
- {
- List <DataKey> dataKeyList = DataKeyList;
- string[] dataKeyNames = DataKeyNames;
- int dataKeyNamesLen = dataKeyNames.Length;
-
- for (int i = 0; i < state.Length; i++) {
- DataKey dataKey = new DataKey (new OrderedDictionary (dataKeyNamesLen), dataKeyNames);
- ((IStateManager) dataKey).LoadViewState (state [i]);
- dataKeyList.Add (dataKey);
- }
- keys = new DataKeyArray (dataKeyList);
- }
- protected override void TrackViewState ()
- {
- base.TrackViewState();
- if (columns != null)
- ((IStateManager)columns).TrackViewState();
- if (pagerSettings != null)
- ((IStateManager)pagerSettings).TrackViewState();
- if (alternatingRowStyle != null)
- ((IStateManager)alternatingRowStyle).TrackViewState();
- if (footerStyle != null)
- ((IStateManager)footerStyle).TrackViewState();
- if (headerStyle != null)
- ((IStateManager)headerStyle).TrackViewState();
- if (pagerStyle != null)
- ((IStateManager)pagerStyle).TrackViewState();
- if (rowStyle != null)
- ((IStateManager)rowStyle).TrackViewState();
- if (selectedRowStyle != null)
- ((IStateManager)selectedRowStyle).TrackViewState();
- if (editRowStyle != null)
- ((IStateManager)editRowStyle).TrackViewState();
- if (emptyDataRowStyle != null)
- ((IStateManager)emptyDataRowStyle).TrackViewState();
- #if NET_4_0
- if (sortedAscendingCellStyle != null)
- ((IStateManager)sortedAscendingCellStyle).TrackViewState ();
-
- if (sortedAscendingHeaderStyle != null)
- ((IStateManager)sortedAscendingHeaderStyle).TrackViewState ();
-
- if (sortedDescendingCellStyle != null)
- ((IStateManager)sortedDescendingCellStyle).TrackViewState ();
-
- if (sortedDescendingHeaderStyle != null)
- ((IStateManager)sortedDescendingHeaderStyle).TrackViewState ();
- if (rowSuffixKeys != null)
- ((IStateManager) rowSuffixKeys).TrackViewState ();
- #endif
- if (keys != null)
- ((IStateManager)keys).TrackViewState();
- if (autoFieldProperties != null) {
- foreach (IStateManager sm in autoFieldProperties)
- sm.TrackViewState ();
- }
- }
- protected override object SaveViewState ()
- {
- object[] autoFieldsData = null;
-
- if (autoFieldProperties != null) {
- object[] data = new object [autoFieldProperties.Length];
- bool allNull = true;
- for (int n = 0; n < data.Length; n++) {
- data [n] = ((IStateManager)autoFieldProperties [n]).SaveViewState ();
- if (data [n] != null)
- allNull = false;
- }
- if (!allNull)
- autoFieldsData = data;
- }
-
- object[] states = {
- base.SaveViewState(), // 0
- (columns == null ? null : ((IStateManager)columns).SaveViewState()), // 1
- (pagerSettings == null ? null : ((IStateManager)pagerSettings).SaveViewState()), // 2
- (alternatingRowStyle == null ? null : ((IStateManager)alternatingRowStyle).SaveViewState()), // 3
- (footerStyle == null ? null : ((IStateManager)footerStyle).SaveViewState()), // 4
- (headerStyle == null ? null : ((IStateManager)headerStyle).SaveViewState()), // 5
- (pagerStyle == null ? null : ((IStateManager)pagerStyle).SaveViewState()), // 6
- (rowStyle == null ? null : ((IStateManager)rowStyle).SaveViewState()), // 7
- (selectedRowStyle == null ? null : ((IStateManager)selectedRowStyle).SaveViewState()), // 8
- (editRowStyle == null ? null : ((IStateManager)editRowStyle).SaveViewState()), // 9
- (emptyDataRowStyle == null ? null : ((IStateManager)emptyDataRowStyle).SaveViewState()), // 10
- autoFieldsData, // 11
- #if NET_4_0
- sortedAscendingCellStyle == null ? null : ((IStateManager)sortedAscendingCellStyle).SaveViewState (), // 12
- sortedAscendingHeaderStyle == null ? null : ((IStateManager)sortedAscendingHeaderStyle).SaveViewState (), // 13
- sortedDescendingCellStyle == null ? null : ((IStateManager)sortedDescendingCellStyle).SaveViewState (), // 14
- sortedDescendingHeaderStyle == null ? null : ((IStateManager)sortedDescendingHeaderStyle).SaveViewState () // 15
- #endif
- };
- for (int i = states.Length - 1; i >= 0; i--) {
- if (states [i] != null)
- return states;
- }
- return null;
- }
- protected override void LoadViewState (object savedState)
- {
- if (savedState == null) {
- base.LoadViewState (null);
- return;
- }
- object [] states = (object []) savedState;
-
- if (states[11] != null) {
- object[] data = (object[]) states [11];
- autoFieldProperties = new AutoGeneratedFieldProperties [data.Length];
- for (int n=0; n<data.Length; n++) {
- IStateManager p = new AutoGeneratedFieldProperties ();
- p.TrackViewState ();
- p.LoadViewState (data [n]);
- autoFieldProperties [n] = (AutoGeneratedFieldProperties) p;
- }
- }
- base.LoadViewState (states[0]);
-
- if (states[1] != null)
- ((IStateManager)Columns).LoadViewState (states[1]);
- if (states[2] != null)
- ((IStateManager)PagerSettings).LoadViewState (states[2]);
- if (states[3] != null)
- ((IStateManager)AlternatingRowStyle).LoadViewState (states[3]);
- if (states[4] != null)
- ((IStateManager)FooterStyle).LoadViewState (states[4]);
- if (states[5] != null)
- ((IStateManager)HeaderStyle).LoadViewState (states[5]);
- if (states[6] != null)
- ((IStateManager)PagerStyle).LoadViewState (states[6]);
- if (states[7] != null)
- ((IStateManager)RowStyle).LoadViewState (states[7]);
- if (states[8] != null)
- ((IStateManager)SelectedRowStyle).LoadViewState (states[8]);
- if (states[9] != null)
- ((IStateManager)EditRowStyle).LoadViewState (states[9]);
- if (states[10] != null)
- ((IStateManager)EmptyDataRowStyle).LoadViewState (states[10]);
- #if NET_4_0
- if (states [12] != null)
- ((IStateManager)sortedAscendingCellStyle).LoadViewState (states [12]);
- if (states [13] != null)
- ((IStateManager)sortedAscendingHeaderStyle).LoadViewState (states [13]);
- if (states [14] != null)
- ((IStateManager)sortedDescendingCellStyle).LoadViewState (states [14]);
- if (states [15] != null)
- ((IStateManager)sortedDescendingHeaderStyle).LoadViewState (states [15]);
- #endif
- }
-
- void ICallbackEventHandler.RaiseCallbackEvent (string eventArgs)
- {
- RaiseCallbackEvent (eventArgs);
- }
-
- protected virtual void RaiseCallbackEvent (string eventArgs)
- {
- string[] clientData = eventArgs.Split ('|');
- PageIndex = int.Parse (clientData[0]);
- SortExpression = HttpUtility.UrlDecode (clientData [1]);
- SortDirection = (SortDirection) int.Parse (clientData [2]);
-
- RaisePostBackEvent (clientData[3]);
- DataBind ();
- }
-
- string ICallbackEventHandler.GetCallbackResult ()
- {
- return GetCallbackResult ();
- }
- protected virtual string GetCallbackResult ()
- {
- PrepareControlHierarchy ();
-
- StringWriter sw = new StringWriter ();
- sw.Write (PageIndex.ToString () + '|' + SortExpression + '|' + (int) SortDirection + '|');
- HtmlTextWriter writer = new HtmlTextWriter (sw);
- RenderGrid (writer);
- return sw.ToString ();
- }
- string ICallbackContainer.GetCallbackScript (IButtonControl control, string argument)
- {
- return GetCallbackScript (control, argument);
- }
-
- protected virtual string GetCallbackScript (IButtonControl control, string argument)
- {
- if (EnableSortingAndPagingCallbacks) {
- Page page = Page;
- if (page != null)
- page.ClientScript.RegisterForEventValidation (UniqueID, argument);
- return "javascript:GridView_ClientEvent (\"" + ClientID + "\",\"" + control.CommandName + "$" + control.CommandArgument + "\"); return false;";
- } else
- return null;
- }
-
- protected override void OnPagePreLoad (object sender, EventArgs e)
- {
- base.OnPagePreLoad (sender, e);
- Page page = Page;
-
- if (page != null && page.IsPostBack && EnableSortingAndPagingCallbacks) {
- HttpRequest req = page.Request;
- int value;
- if (req != null) {
- if (int.TryParse (req.Form [ClientID + "_Page"], out value))
- PageIndex = value;
- if (int.TryParse (req.Form [ClientID + "_SortDirection"], out value))
- SortDirection = (SortDirection) value;
- SortExpression = req.Form [ClientID + "_SortExpression"];
- }
- }
- }
- const string onPreRenderScript = @"var {0} = new Object ();
- {0}.pageIndex = {1};
- {0}.sortExp = {2};
- {0}.sortDir = {3};
- {0}.uid = {4};
- {0}.form = {5};
- ";
- protected internal override void OnPreRender (EventArgs e)
- {
- base.OnPreRender (e);
- if (EnableSortingAndPagingCallbacks) {
- Page page = Page;
- ClientScriptManager scriptManager = page != null ? page.ClientScript : null;
- if (scriptManager != null) {
- if (!scriptManager.IsClientScriptIncludeRegistered (typeof(GridView), "GridView.js")) {
- string url = scriptManager.GetWebResourceUrl (typeof(GridView), "GridView.js");
- scriptManager.RegisterClientScriptInclude (typeof(GridView), "GridView.js", url);
- }
-
- string cgrid = ClientID + "_data";
- string script = String.Format (onPreRenderScript,
- cgrid,
- ClientScriptManager.GetScriptLiteral (PageIndex),
- ClientScriptManager.GetScriptLiteral (SortExpression == null ? String.Empty : SortExpression),
- ClientScriptManager.GetScriptLiteral ((int) SortDirection),
- ClientScriptManager.GetScriptLiteral (UniqueID),
- page.theForm);
-
- scriptManager.RegisterStartupScript (typeof(TreeView), this.UniqueID, script, true);
-
- // Make sure the basic script infrastructure is rendered
- scriptManager.GetCallbackEventReference (this, "null", String.Empty, "null");
- scriptManager.GetPostBackClientHyperlink (this, String.Empty);
- }
- }
- }
-
- protected internal override void Render (HtmlTextWriter writer)
- {
- PrepareControlHierarchy ();
- if (EnableSortingAndPagingCallbacks)
- writer.AddAttribute (HtmlTextWriterAttribute.Id, ClientID + "_div");
- writer.RenderBeginTag (HtmlTextWriterTag.Div);
- RenderGrid (writer);
- writer.RenderEndTag ();
- }
-
- void RenderGrid (HtmlTextWriter writer)
- {
- if (table == null)
- return;
- table.Render (writer);
- }
- PostBackOptions IPostBackContainer.GetPostBackOptions (IButtonControl control)
- {
- if (control == null)
- throw new ArgumentNullException ("control");
-
- if (control.CausesValidation)
- throw new InvalidOperationException ("A button that causes validation in GridView '" + ID + "' is attempting to use the container GridView as the post back target. The button should either turn off validation or use itself as the post back container.");
-
- PostBackOptions options = new PostBackOptions (this);
- options.Argument = control.CommandName + "$" + control.CommandArgument;
- options.RequiresJavaScriptProtocol = true;
- return options;
- }
- }
- }