/Source/MvcFutures/Mvc/Html/HtmlHelperExtensions.cs

namespace Microsoft.Web.Mvc.Html {

    using System;

    using System.Collections.Generic;

    using System.Diagnostics.CodeAnalysis;

    using System.Linq.Expressions;

    using System.Web.Mvc;

    using System.Web.Mvc.Html;

    using System.Web.Routing;



    // This class contains definitions of single "super" HTML helper methods, which rely on

    // CLR 4's default values for method parameters to make them more consumable. Methods

    // which previously took an HTML attributes object/dictionary now have their legal

    // attribute values all available as optional parameters. Some attributes are only

    // applicable for some DTDs; deprecated attributes (like "align" on input) were

    // specifically excluded.

    //

    // Since htmlAttributes was very often the last parameter to HTML helper methods,

    // converting to these new syntaxes should be as simple as converting your anonymous

    // object htmlAttributes collections into optional parameters.

    //

    // Where there were two overloads for route values (anonymous object and dictionary),

    // there is only a single overload now, which takes type object. If what you pass is

    // a dictionary of the correct type, then we'll use that; otherwise, we'll assume it's

    // an anonymous object and create the dictionary for you. This should make it simple

    // to port methods using route values, as they should just continue to work as before.

    //

    // Some HTML helpers did not take HTML attributes parameters. They are recreated here

    // so that the user does not have to import both System.Web.Mvc.Html as well as this

    // namespace, since the purpose of these methods is to get rid of all the overloads

    // for the built-in HTML helpers.

    //

    // The legal attribute values were derived from: http://www.w3schools.com/tags/



    public static class HtmlHelperExtensions {

        // ChildActionExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString Action(this HtmlHelper htmlHelper, string actionName, string controllerName = null, object routeValues = null) {

            return ChildActionExtensions.Action(

                htmlHelper,

                actionName,

                controllerName,

                routeValues as IDictionary<string, object> ?? new RouteValueDictionary(routeValues)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static void RenderAction(this HtmlHelper htmlHelper, string actionName, string controllerName = null, object routeValues = null) {

            ChildActionExtensions.RenderAction(

                htmlHelper,

                actionName,

                controllerName,

                routeValues as IDictionary<string, object> ?? new RouteValueDictionary(routeValues)

            );

        }



        // DisplayExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString Display(this HtmlHelper htmlHelper, string expression, string templateName = null, string htmlFieldName = null) {

            return DisplayExtensions.Display(htmlHelper, expression, templateName, htmlFieldName);

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString DisplayFor<TModel, TValue>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TValue>> expression, string templateName = null, string htmlFieldName = null) {

            return DisplayExtensions.DisplayFor(htmlHelper, expression, templateName, htmlFieldName);

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString DisplayForModel(this HtmlHelper htmlHelper, string templateName = null, string htmlFieldName = null) {

            return DisplayExtensions.DisplayForModel(htmlHelper, templateName, htmlFieldName);

        }



        // DisplayTextExtensions



        public static MvcHtmlString DisplayText(this HtmlHelper htmlHelper, string name) {

            return DisplayTextExtensions.DisplayText(htmlHelper, name);

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        public static MvcHtmlString DisplayTextFor<TModel, TResult>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TResult>> expression) {

            return DisplayTextExtensions.DisplayTextFor(htmlHelper, expression);

        }



        // EditorExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString Editor(this HtmlHelper htmlHelper, string expression, string templateName = null, string htmlFieldName = null) {

            return EditorExtensions.Editor(htmlHelper, expression, templateName, htmlFieldName);

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString EditorFor<TModel, TValue>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TValue>> expression, string templateName = null, string htmlFieldName = null) {

            return EditorExtensions.EditorFor(htmlHelper, expression, templateName, htmlFieldName);

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString EditorForModel(this HtmlHelper htmlHelper, string templateName = null, string htmlFieldName = null) {

            return EditorExtensions.EditorForModel(htmlHelper, templateName, htmlFieldName);

        }



        // FormExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Charset", Justification = "The name matches the HTML attribute name")]

        public static MvcForm BeginForm(this HtmlHelper htmlHelper, string actionName = null, string controllerName = null, object routeValues = null, FormMethod method = FormMethod.Post, string accept = null, string acceptCharset = null, string cssClass = null, string dir = null, string encType = null, string id = null, string lang = null, string name = null, string style = null, string title = null) {

            return FormExtensions.BeginForm(

                htmlHelper,

                actionName,

                controllerName,

                routeValues as RouteValueDictionary ?? new RouteValueDictionary(routeValues),

                method,

                FormAttributes(accept, acceptCharset, cssClass, dir, encType, id, lang, name, style, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Charset", Justification = "The name matches the HTML attribute name")]

        public static MvcForm BeginRouteForm(this HtmlHelper htmlHelper, string routeName, RouteValueDictionary routeValues = null, FormMethod method = FormMethod.Post, string accept = null, string acceptCharset = null, string cssClass = null, string dir = null, string encType = null, string id = null, string lang = null, string name = null, string style = null, string title = null) {

            return FormExtensions.BeginRouteForm(

                htmlHelper,

                routeName,

                routeValues as RouteValueDictionary ?? new RouteValueDictionary(routeValues),

                method,

                FormAttributes(accept, acceptCharset, cssClass, dir, encType, id, lang, name, style, title)

            );

        }



        public static void EndForm(this HtmlHelper htmlHelper) {

            FormExtensions.EndForm(htmlHelper);

        }



        // InputExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString CheckBox(this HtmlHelper htmlHelper, string name, bool? isChecked = null, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? maxLength = null, bool readOnly = false, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            var htmlAttributes = InputAttributes(cssClass, dir, disabled, id, lang, maxLength, readOnly, size, style, tabIndex, title);



            return isChecked.HasValue

                ? InputExtensions.CheckBox(htmlHelper, name, isChecked.Value, htmlAttributes)

                : InputExtensions.CheckBox(htmlHelper, name, htmlAttributes);

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString CheckBoxFor<TModel>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, bool>> expression, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? maxLength = null, bool readOnly = false, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return InputExtensions.CheckBoxFor(

                htmlHelper,

                expression,

                InputAttributes(cssClass, dir, disabled, id, lang, maxLength, readOnly, size, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString Hidden(this HtmlHelper htmlHelper, string name, object value = null, string cssClass = null, string id = null, string style = null) {

            return InputExtensions.Hidden(htmlHelper, name, value, Attributes(cssClass, id, style));

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString HiddenFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, string cssClass = null, string id = null, string style = null) {

            return InputExtensions.HiddenFor(htmlHelper, expression, Attributes(cssClass, id, style));

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString Password(this HtmlHelper htmlHelper, string name, object value = null, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? maxLength = null, bool readOnly = false, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return InputExtensions.Password(

                htmlHelper,

                name,

                value,

                InputAttributes(cssClass, dir, disabled, id, lang, maxLength, readOnly, size, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString PasswordFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, string cssClass = null, bool disabled = false, string dir = null, string id = null, string lang = null, int? maxLength = null, bool readOnly = false, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return InputExtensions.PasswordFor(

                htmlHelper,

                expression,

                InputAttributes(cssClass, dir, disabled, id, lang, maxLength, readOnly, size, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString RadioButton(this HtmlHelper htmlHelper, string name, object value, bool? isChecked = null, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? maxLength = null, bool readOnly = false, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            var htmlAttributes = InputAttributes(cssClass, dir, disabled, id, lang, maxLength, readOnly, size, style, tabIndex, title);



            return isChecked.HasValue

                ? InputExtensions.RadioButton(htmlHelper, name, value, isChecked.Value, htmlAttributes)

                : InputExtensions.RadioButton(htmlHelper, name, value, htmlAttributes);

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString RadioButtonFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, object value, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? maxLength = null, bool readOnly = false, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return InputExtensions.RadioButtonFor(

                htmlHelper,

                expression,

                value,

                InputAttributes(cssClass, dir, disabled, id, lang, maxLength, readOnly, size, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString TextBox(this HtmlHelper htmlHelper, string name, object value = null, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? maxLength = null, bool readOnly = false, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return InputExtensions.TextBox(

                htmlHelper,

                name,

                value,

                InputAttributes(cssClass, dir, disabled, id, lang, maxLength, readOnly, size, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString TextBoxFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? maxLength = null, bool readOnly = false, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return InputExtensions.TextBoxFor(

                htmlHelper,

                expression,

                InputAttributes(cssClass, dir, disabled, id, lang, maxLength, readOnly, size, style, tabIndex, title)

            );

        }



        // LabelExtensions



        public static MvcHtmlString Label(this HtmlHelper htmlHelper, string expression) {

            return LabelExtensions.Label(htmlHelper, expression);

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        public static MvcHtmlString LabelFor<TModel, TValue>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TValue>> expression) {

            return LabelExtensions.LabelFor(htmlHelper, expression);

        }



        public static MvcHtmlString LabelForModel(this HtmlHelper htmlHelper) {

            return LabelExtensions.LabelForModel(htmlHelper);

        }



        // LinkExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "charset", Justification = "This matched the HTML attribute spelling")]

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "coords", Justification = "This matched the HTML attribute spelling")]

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "rel", Justification = "This matched the HTML attribute spelling")]

        public static MvcHtmlString ActionLink(this HtmlHelper htmlHelper, string linkText, string actionName, string controllerName = null, string protocol = null, string hostName = null, string fragment = null, object routeValues = null, string accessKey = null, string charset = null, string coords = null, string cssClass = null, string dir = null, string hrefLang = null, string id = null, string lang = null, string name = null, string rel = null, string rev = null, string shape = null, string style = null, string target = null, string title = null) {

            return LinkExtensions.ActionLink(

                htmlHelper,

                linkText,

                actionName,

                controllerName,

                protocol,

                hostName,

                fragment,

                routeValues as RouteValueDictionary ?? new RouteValueDictionary(routeValues),

                AnchorAttributes(accessKey, charset, coords, cssClass, dir, hrefLang, id, lang, name, rel, rev, shape, style, target, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "charset", Justification = "The name matches the HTML attribute name")]

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "coords", Justification = "The name matches the HTML attribute name")]

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "rel", Justification = "The name matches the HTML attribute name")]

        public static MvcHtmlString RouteLink(this HtmlHelper htmlHelper, string linkText, string routeName, string protocol = null, string hostName = null, string fragment = null, object routeValues = null, string accessKey = null, string charset = null, string coords = null, string cssClass = null, string dir = null, string hrefLang = null, string id = null, string lang = null, string name = null, string rel = null, string rev = null, string shape = null, string style = null, string target = null, string title = null) {

            return LinkExtensions.RouteLink(

                htmlHelper,

                linkText,

                routeName,

                protocol,

                hostName,

                fragment,

                routeValues as RouteValueDictionary ?? new RouteValueDictionary(routeValues),

                AnchorAttributes(accessKey, charset, coords, cssClass, dir, hrefLang, id, lang, name, rel, rev, shape, style, target, title)

            );

        }



        // PartialExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString Partial(this HtmlHelper htmlHelper, string partialViewName, object model = null, ViewDataDictionary viewData = null) {

            return PartialExtensions.Partial(

                htmlHelper,

                partialViewName,

                model,

                viewData ?? htmlHelper.ViewData

            );

        }



        // RenderPartialExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static void RenderPartial(this HtmlHelper htmlHelper, string partialViewName, object model = null, ViewDataDictionary viewData = null) {

            RenderPartialExtensions.RenderPartial(

                htmlHelper,

                partialViewName,

                model,

                viewData ?? htmlHelper.ViewData

            );

        }



        // SelectExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString DropDownList(this HtmlHelper htmlHelper, string name, IEnumerable<SelectListItem> selectList = null, string optionLabel = null, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return SelectExtensions.DropDownList(

                htmlHelper,

                name,

                selectList,

                optionLabel,

                SelectAttributes(cssClass, dir, disabled, id, lang, size, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString DropDownListFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<SelectListItem> selectList = null, string optionLabel = null, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return SelectExtensions.DropDownListFor(

                htmlHelper,

                expression,

                selectList,

                optionLabel,

                SelectAttributes(cssClass, dir, disabled, id, lang, size, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString ListBox(this HtmlHelper htmlHelper, string name, IEnumerable<SelectListItem> selectList = null, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return SelectExtensions.ListBox(

                htmlHelper,

                name,

                selectList,

                SelectAttributes(cssClass, dir, disabled, id, lang, size, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString ListBoxFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, IEnumerable<SelectListItem> selectList = null, string cssClass = null, string dir = null, bool disabled = false, string id = null, string lang = null, int? size = null, string style = null, int? tabIndex = null, string title = null) {

            return SelectExtensions.ListBoxFor(

                htmlHelper,

                expression,

                selectList,

                SelectAttributes(cssClass, dir, disabled, id, lang, size, style, tabIndex, title)

            );

        }



        // TextAreaExtensions



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString TextArea(this HtmlHelper htmlHelper, string name, string value = null, string accessKey = null, string cssClass = null, int? cols = null, string dir = null, bool disabled = false, string id = null, string lang = null, bool readOnly = false, int? rows = null, string style = null, int? tabIndex = null, string title = null) {

            return TextAreaExtensions.TextArea(

                htmlHelper,

                name,

                value,

                TextAreaAttributes(accessKey, cssClass, cols, dir, disabled, id, lang, readOnly, rows, style, tabIndex, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString TextAreaFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, string accessKey = null, string cssClass = null, int? cols = null, string dir = null, bool disabled = false, string id = null, string lang = null, bool readOnly = false, int? rows = null, string style = null, int? tabIndex = null, string title = null) {

            return TextAreaExtensions.TextAreaFor(

                htmlHelper,

                expression,

                TextAreaAttributes(accessKey, cssClass, cols, dir, disabled, id, lang, readOnly, rows, style, tabIndex, title)

            );

        }



        // ValidationExtensions



        public static void Validate(this HtmlHelper htmlHelper, string modelName) {

            ValidationExtensions.Validate(htmlHelper, modelName);

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        public static void ValidateFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression) {

            ValidationExtensions.ValidateFor(htmlHelper, expression);

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        [SuppressMessage("Microsoft.Naming", "CA1719:ParameterNamesShouldNotMatchMemberNames", MessageId = "2#")]

        public static MvcHtmlString ValidationMessage(this HtmlHelper htmlHelper, string modelName, string validationMessage = null, string cssClass = null, string dir = null, string id = null, string lang = null, string style = null, string title = null) {

            return ValidationExtensions.ValidationMessage(

                htmlHelper,

                modelName,

                validationMessage,

                SpanAttributes(cssClass, dir, id, lang, style, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures", Justification = "This is an appropriate nesting of generic types")]

        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString ValidationMessageFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, string validationMessage = null, string cssClass = null, string dir = null, string id = null, string lang = null, string style = null, string title = null) {

            return ValidationExtensions.ValidationMessageFor(

                htmlHelper,

                expression,

                validationMessage,

                SpanAttributes(cssClass, dir, id, lang, style, title)

            );

        }



        [SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed", Justification = "The purpose of these helpers is to use default parameters to simplify common usage.")]

        public static MvcHtmlString ValidationSummary(this HtmlHelper htmlHelper, string message = null, bool excludePropertyErrors = false, string cssClass = null, string dir = null, string id = null, string lang = null, string style = null, string title = null) {

            return ValidationExtensions.ValidationSummary(

                htmlHelper,

                excludePropertyErrors,

                message,

                SpanAttributes(cssClass, dir, id, lang, style, title)

            );

        }



        // Helper methods



        private static void AddOptional(this IDictionary<string, object> dictionary, string key, bool value) {

            if (value) {

                dictionary[key] = key;

            }

        }



        private static void AddOptional(this IDictionary<string, object> dictionary, string key, object value) {

            if (value != null) {

                dictionary[key] = value;

            }

        }



        private static IDictionary<string, object> Attributes(string cssClass, string id, string style) {

            var htmlAttributes = new RouteValueDictionary();



            htmlAttributes.AddOptional("class", cssClass);

            htmlAttributes.AddOptional("id", id);

            htmlAttributes.AddOptional("style", style);



            return htmlAttributes;

        }



        private static IDictionary<string, object> AnchorAttributes(string accessKey, string charset, string coords, string cssClass, string dir, string hrefLang, string id, string lang, string name, string rel, string rev, string shape, string style, string target, string title) {

            var htmlAttributes = Attributes(cssClass, id, style);



            htmlAttributes.AddOptional("accesskey", accessKey);

            htmlAttributes.AddOptional("charset", charset);

            htmlAttributes.AddOptional("coords", coords);

            htmlAttributes.AddOptional("dir", dir);

            htmlAttributes.AddOptional("hreflang", hrefLang);

            htmlAttributes.AddOptional("lang", lang);

            htmlAttributes.AddOptional("name", name);

            htmlAttributes.AddOptional("rel", rel);

            htmlAttributes.AddOptional("rev", rev);

            htmlAttributes.AddOptional("shape", shape);

            htmlAttributes.AddOptional("target", target);

            htmlAttributes.AddOptional("title", title);



            return htmlAttributes;

        }



        private static IDictionary<string, object> FormAttributes(string accept, string acceptCharset, string cssClass, string dir, string encType, string id, string lang, string name, string style, string title) {

            var htmlAttributes = Attributes(cssClass, id, style);



            htmlAttributes.AddOptional("accept", accept);

            htmlAttributes.AddOptional("accept-charset", acceptCharset);

            htmlAttributes.AddOptional("dir", dir);

            htmlAttributes.AddOptional("enctype", encType);

            htmlAttributes.AddOptional("lang", lang);

            htmlAttributes.AddOptional("name", name);

            htmlAttributes.AddOptional("title", title);



            return htmlAttributes;

        }



        private static IDictionary<string, object> InputAttributes(string cssClass, string dir, bool disabled, string id, string lang, int? maxLength, bool readOnly, int? size, string style, int? tabIndex, string title) {

            var htmlAttributes = Attributes(cssClass, id, style);



            htmlAttributes.AddOptional("dir", dir);

            htmlAttributes.AddOptional("disabled", disabled);

            htmlAttributes.AddOptional("lang", lang);

            htmlAttributes.AddOptional("maxlength", maxLength);

            htmlAttributes.AddOptional("readonly", readOnly);

            htmlAttributes.AddOptional("size", size);

            htmlAttributes.AddOptional("tabindex", tabIndex);

            htmlAttributes.AddOptional("title", title);



            return htmlAttributes;

        }



        private static IDictionary<string, object> SelectAttributes(string cssClass, string dir, bool disabled, string id, string lang, int? size, string style, int? tabIndex, string title) {

            var htmlAttributes = Attributes(cssClass, id, style);



            htmlAttributes.AddOptional("dir", dir);

            htmlAttributes.AddOptional("disabled", disabled);

            htmlAttributes.AddOptional("lang", lang);

            htmlAttributes.AddOptional("size", size);

            htmlAttributes.AddOptional("tabindex", tabIndex);

            htmlAttributes.AddOptional("title", title);



            return htmlAttributes;

        }



        private static IDictionary<string, object> SpanAttributes(string cssClass, string dir, string id, string lang, string style, string title) {

            var htmlAttributes = Attributes(cssClass, id, style);



            htmlAttributes.AddOptional("dir", dir);

            htmlAttributes.AddOptional("lang", lang);

            htmlAttributes.AddOptional("title", title);



            return htmlAttributes;

        }



        private static IDictionary<string, object> TextAreaAttributes(string accessKey, string cssClass, int? cols, string dir, bool disabled, string id, string lang, bool readOnly, int? rows, string style, int? tabIndex, string title) {

            var htmlAttributes = Attributes(cssClass, id, style);



            htmlAttributes.AddOptional("accesskey", accessKey);

            htmlAttributes.AddOptional("cols", cols);

            htmlAttributes.AddOptional("dir", dir);

            htmlAttributes.AddOptional("disabled", disabled);

            htmlAttributes.AddOptional("lang", lang);

            htmlAttributes.AddOptional("readonly", readOnly);

            htmlAttributes.AddOptional("rows", rows);

            htmlAttributes.AddOptional("style", style);

            htmlAttributes.AddOptional("tabindex", tabIndex);

            htmlAttributes.AddOptional("title", title);



            return htmlAttributes;

        }



    }

}