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  1<div class="body-wrap" xmlns:ext="http://www.extjs.com"><div class="top-tools"><a class="inner-link" href="#Ext.Updater-props"><img src="../resources/images/default/s.gif" class="item-icon icon-prop">Properties</a>&#13;<a class="inner-link" href="#Ext.Updater-methods"><img src="../resources/images/default/s.gif" class="item-icon icon-method">Methods</a>&#13;<a class="inner-link" href="#Ext.Updater-events"><img src="../resources/images/default/s.gif" class="item-icon icon-event">Events</a>&#13;<a class="inner-link" href="#Ext.Updater-configs"><img src="../resources/images/default/s.gif" class="item-icon icon-config">Config Options</a>&#13;<a class="bookmark" href="../docs/?class=Ext.Updater"><img src="../resources/images/default/s.gif" class="item-icon icon-fav">Direct Link</a>&#13;</div><div class="inheritance res-block"><pre class="res-block-inner"><a href="output/Ext.util.Observable.html" ext:member="" ext:cls="Ext.util.Observable">Observable</a>&#13;&nbsp;&nbsp;<img src="resources/elbow-end.gif">Updater</pre></div><h1>Class <a href="source/UpdateManager.html#cls-Ext.Updater">Ext.Updater</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext</td></tr><tr><td class="label">Defined In:</td><td class="hd-info"><a href="source/UpdateManager.html#cls-Ext.Updater">UpdateManager.js</a></td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/UpdateManager.html#cls-Ext.Updater">Updater</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info"><a href="output/Ext.util.Observable.html" ext:cls="Ext.util.Observable" ext:member="">Observable</a></td></tr></table><div class="description">Provides AJAX-style update capabilities for Element objects.  Updater can be used to <a href="output/Ext.Updater.html#Ext.Updater-update" ext:member="update" ext:cls="Ext.Updater">update</a>
  2an <a href="output/Ext.Element.html" ext:cls="Ext.Element">Ext.Element</a> once, or you can use <a href="output/Ext.Updater.html#Ext.Updater-startAutoRefresh" ext:member="startAutoRefresh" ext:cls="Ext.Updater">startAutoRefresh</a> to set up an auto-updating
  3<a href="output/Ext.Element.html" ext:cls="Ext.Element">Element</a> on a specific interval.<br><br>
  4Usage:<br>
  5<pre><code><b>var</b> el = Ext.get(<em>"foo"</em>); <i>// Get Ext.Element object</i>
  6<b>var</b> mgr = el.getUpdater();
  7mgr.update({
  8        url: <em>"http:<i>//myserver.com/index.php"</em>,</i>
  9        params: {
 10            param1: <em>"foo"</em>,
 11            param2: <em>"bar"</em>
 12        }
 13});
 14...
 15mgr.formUpdate(<em>"myFormId"</em>, <em>"http:<i>//myserver.com/index.php"</em>);</i>
 16<br>
 17<i>// or directly (returns the same Updater instance)</i>
 18<b>var</b> mgr = <b>new</b> Ext.Updater(<em>"myElementId"</em>);
 19mgr.startAutoRefresh(60, <em>"http:<i>//myserver.com/index.php"</em>);</i>
 20mgr.on(<em>"update"</em>, myFcnNeedsToKnow);
 21<br>
 22<i>// short handed call directly from the element object</i>
 23Ext.get(<em>"foo"</em>).load({
 24        url: <em>"bar.php"</em>,
 25        scripts: true,
 26        params: <em>"param1=foo&amp;param2=bar"</em>,
 27        text: <em>"Loading Foo..."</em>
 28});</code></pre></div><div class="hr"></div><a id="Ext.Updater-configs"></a><h2>Config Options</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Config Options</th><th class="msource-header">Defined By</th></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-listeners"></a><b><a href="source/Observable.html#cfg-Ext.util.Observable-listeners">listeners</a></b> : Object<div class="mdesc"><div class="short">A config object containing one or more event handlers to be added to this
 29object during initialization.  This should ...</div><div class="long"><p>A config object containing one or more event handlers to be added to this
 30object during initialization.  This should be a valid listeners config object as specified in the
 31<a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> example for attaching multiple handlers at once.</p>
 32<br><p><b><u>DOM events from ExtJs <a href="output/Ext.Component.html" ext:cls="Ext.Component">Components</a></u></b></p>
 33<br><p>While <i>some</i> ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this
 34is usually only done when extra value can be added. For example the <a href="output/Ext.DataView.html" ext:cls="Ext.DataView">DataView</a>'s
 35<b><code><a href="output/Ext.DataView.html#Ext.DataView-click" ext:member="click" ext:cls="Ext.DataView">click</a></code></b> event passing the node clicked on. To access DOM
 36events directly from a Component's HTMLElement, listeners must be added to the <i><a href="output/Ext.Component.html#Ext.Component-getEl" ext:member="getEl" ext:cls="Ext.Component">Element</a></i> after the Component
 37has been rendered. A plugin can simplify this step:<pre><code><i>// Plugin is configured <b>with</b> a listeners config object.</i>
 38<i>// The Component is appended to the argument list of all handler functions.</i>
 39Ext.DomObserver = Ext.extend(Object, {
 40    constructor: <b>function</b>(config) {
 41        this.listeners = config.listeners ? config.listeners : config;
 42    },
 43
 44    <i>// Component passes itself into plugin&#39;s init method</i>
 45    init: <b>function</b>(c) {
 46        <b>var</b> p, l = this.listeners;
 47        <b>for</b> (p <b>in</b> l) {
 48            <b>if</b> (Ext.isFunction(l[p])) {
 49                l[p] = this.createHandler(l[p], c);
 50            } <b>else</b> {
 51                l[p].fn = this.createHandler(l[p].fn, c);
 52            }
 53        }
 54
 55        <i>// Add the listeners to the Element immediately following the render call</i>
 56        c.render = c.render.<a href="output/Function.html#Function-createSequence" ext:member="createSequence" ext:cls="Function">createSequence</a>(<b>function</b>() {
 57            <b>var</b> e = c.getEl();
 58            <b>if</b> (e) {
 59                e.on(l);
 60            }
 61        });
 62    },
 63
 64    createHandler: <b>function</b>(fn, c) {
 65        <b>return</b> <b>function</b>(e) {
 66            fn.call(this, e, c);
 67        };
 68    }
 69});
 70
 71<b>var</b> combo = <b>new</b> Ext.form.ComboBox({
 72
 73    <i>// Collapse combo when its element is clicked on</i>
 74    plugins: [ <b>new</b> Ext.DomObserver({
 75        click: <b>function</b>(evt, comp) {
 76            comp.collapse();
 77        }
 78    })],
 79    store: myStore,
 80    typeAhead: true,
 81    mode: <em>'local'</em>,
 82    triggerAction: <em>'all'</em>
 83});</code></pre></p></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#listeners" ext:member="#listeners" ext:cls="Ext.util.Observable">Observable</a></td></tr></tbody></table><a id="Ext.Updater-props"></a><h2>Public Properties</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Property</th><th class="msource-header">Defined By</th></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-defaultUrl"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-defaultUrl">defaultUrl</a></b> : String<div class="mdesc">Cached url to use for refreshes. Overwritten every time update() is called unless "discardUrl" param is set to true.</div></td><td class="msource">Updater</td></tr><tr class="property-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-disableCaching"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-disableCaching">disableCaching</a></b> : Boolean<div class="mdesc"><div class="short">Whether to append unique parameter on get request to disable caching (defaults to Ext.Updater.defaults.disableCaching...</div><div class="long">Whether to append unique parameter on get request to disable caching (defaults to <a href="output/Ext.Updater.defaults.html#Ext.Updater.defaults-disableCaching" ext:member="disableCaching" ext:cls="Ext.Updater.defaults">Ext.Updater.defaults.disableCaching</a>).</div></div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-el"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-el">el</a></b> : Ext.Element<div class="mdesc">The Element object</div></td><td class="msource">Updater</td></tr><tr class="property-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-formUpdateDelegate"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-formUpdateDelegate">formUpdateDelegate</a></b> : Function<div class="mdesc"><div class="short">Delegate for formUpdate() prebound to "this", use myUpdater.formUpdateDelegate.createCallback(arg1, arg2) to bind arg...</div><div class="long">Delegate for formUpdate() prebound to "this", use myUpdater.formUpdateDelegate.createCallback(arg1, arg2) to bind arguments</div></div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-indicatorText"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-indicatorText">indicatorText</a></b> : String<div class="mdesc">Text for loading indicator (defaults to <a href="output/Ext.Updater.defaults.html#Ext.Updater.defaults-indicatorText" ext:member="indicatorText" ext:cls="Ext.Updater.defaults">Ext.Updater.defaults.indicatorText</a>).</div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-loadScripts"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-loadScripts">loadScripts</a></b> : Boolean<div class="mdesc">True to process scripts in the output (defaults to <a href="output/Ext.Updater.defaults.html#Ext.Updater.defaults-loadScripts" ext:member="loadScripts" ext:cls="Ext.Updater.defaults">Ext.Updater.defaults.loadScripts</a>).</div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-refreshDelegate"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-refreshDelegate">refreshDelegate</a></b> : Function<div class="mdesc">Delegate for refresh() prebound to "this", use myUpdater.refreshDelegate.createCallback(arg1, arg2) to bind arguments</div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-renderer"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-renderer">renderer</a></b> : Object<div class="mdesc">The renderer for this Updater (defaults to <a href="output/Ext.Updater.BasicRenderer.html" ext:cls="Ext.Updater.BasicRenderer">Ext.Updater.BasicRenderer</a>).</div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-showLoadIndicator"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-showLoadIndicator">showLoadIndicator</a></b> : String<div class="mdesc">Whether to show indicatorText when loading (defaults to <a href="output/Ext.Updater.defaults.html#Ext.Updater.defaults-showLoadIndicator" ext:member="showLoadIndicator" ext:cls="Ext.Updater.defaults">Ext.Updater.defaults.showLoadIndicator</a>).</div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-sslBlankUrl"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-sslBlankUrl">sslBlankUrl</a></b> : String<div class="mdesc">Blank page URL to use with SSL file uploads (defaults to <a href="output/Ext.Updater.defaults.html#Ext.Updater.defaults-sslBlankUrl" ext:member="sslBlankUrl" ext:cls="Ext.Updater.defaults">Ext.Updater.defaults.sslBlankUrl</a>).</div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-timeout"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-timeout">timeout</a></b> : Number<div class="mdesc">Timeout for requests or form posts in seconds (defaults to <a href="output/Ext.Updater.defaults.html#Ext.Updater.defaults-timeout" ext:member="timeout" ext:cls="Ext.Updater.defaults">Ext.Updater.defaults.timeout</a>).</div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-transaction"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-transaction">transaction</a></b> : Object<div class="mdesc">Transaction object of the current executing transaction, or null if there is no active transaction.</div></td><td class="msource">Updater</td></tr><tr class="property-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-updateDelegate"></a><b><a href="source/UpdateManager.html#prop-Ext.Updater-updateDelegate">updateDelegate</a></b> : Function<div class="mdesc">Delegate for update() prebound to "this", use myUpdater.updateDelegate.createCallback(arg1, arg2) to bind arguments</div></td><td class="msource">Updater</td></tr></tbody></table><a id="Ext.Updater-methods"></a><h2>Public Methods</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Method</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-Updater"></a><b><a href="source/UpdateManager.html#cls-Ext.Updater">Updater</a></b>(&nbsp;<code>Mixed&nbsp;el</code>,&nbsp;<span title="Optional" class="optional">[<code>Boolean&nbsp;forceNew</code>]</span>&nbsp;)
 84    <div class="mdesc"><div class="short">Create new Updater directly.</div><div class="long">Create new Updater directly.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>el</code> : Mixed<div class="sub-desc">The element to update</div></li><li><code>forceNew</code> : Boolean<div class="sub-desc">(optional) By default the constructor checks to see if the passed element already
 85has an Updater and if it does it returns the same instance. This will skip that check (useful for extending this class).</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-Updater.updateElement"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-Updater.updateElement">Updater.updateElement</a></b>(&nbsp;<code>Mixed&nbsp;el</code>,&nbsp;<code>String&nbsp;url</code>,&nbsp;<span title="Optional" class="optional">[<code>String/Object&nbsp;params</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;options</code>]</span>&nbsp;)
 86    :
 87                                        void<div class="mdesc"><div class="short">&lt;static&gt;&nbsp;Static convenience method. This method is deprecated in favor of el.load({url:'foo.php', ...}).
 88Usage:
 89Ext.Updater.up...</div><div class="long">&lt;static&gt;&nbsp;Static convenience method. <b>This method is deprecated in favor of el.load({url:'foo.php', ...})</b>.
 90Usage:
 91<pre><code>Ext.Updater.updateElement(<em>"my-div"</em>, <em>"stuff.php"</em>);</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>el</code> : Mixed<div class="sub-desc">The element to update</div></li><li><code>url</code> : String<div class="sub-desc">The url</div></li><li><code>params</code> : String/Object<div class="sub-desc">(optional) Url encoded param string or an object of name/value pairs</div></li><li><code>options</code> : Object<div class="sub-desc">(optional) A config object with any of the Updater properties you want to set - for
 92example: {disableCaching:true, indicatorText: "Loading data..."}</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-abort"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-abort">abort</a></b>()
 93    :
 94                                        void<div class="mdesc"><div class="short">Aborts the currently executing transaction, if any.</div><div class="long">Aborts the currently executing transaction, if any.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-addEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-addEvents">addEvents</a></b>(&nbsp;<code>Object|String&nbsp;o</code>,&nbsp;<code>string&nbsp;Optional.</code>&nbsp;)
 95    :
 96                                        void<div class="mdesc"><div class="short">Adds the specified events to the list of events which this Observable may fire.</div><div class="long">Adds the specified events to the list of events which this Observable may fire.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object|String<div class="sub-desc">Either an object with event names as properties with a value of <code>true</code>
 97or the first event name string if multiple event names are being passed as separate parameters.</div></li><li><code>Optional.</code> : string<div class="sub-desc">Event name if multiple event names are being passed as separate parameters.
 98Usage:<pre><code>this.addEvents(<em>'storeloaded'</em>, <em>'storecleared'</em>);</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#addEvents" ext:member="#addEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-addListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-addListener">addListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;options</code>]</span>&nbsp;)
 99    :
100                                        void<div class="mdesc"><div class="short">Appends an event handler to this object.</div><div class="long">Appends an event handler to this object.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to listen for.</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes.</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
101<b>If omitted, defaults to the object which fired the event.</b></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.
102properties. This may contain any of the following properties:<ul>
103<li><b>scope</b> : Object<div class="sub-desc">The scope (<code><b>this</b></code> reference) in which the handler function is executed.
104<b>If omitted, defaults to the object which fired the event.</b></div></li>
105<li><b>delay</b> : Number<div class="sub-desc">The number of milliseconds to delay the invocation of the handler after the event fires.</div></li>
106<li><b>single</b> : Boolean<div class="sub-desc">True to add a handler to handle just the next firing of the event, and then remove itself.</div></li>
107<li><b>buffer</b> : Number<div class="sub-desc">Causes the handler to be scheduled to run in an <a href="output/Ext.util.DelayedTask.html" ext:cls="Ext.util.DelayedTask">Ext.util.DelayedTask</a> delayed
108by the specified number of milliseconds. If the event fires again within that time, the original
109handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
110<li><b>target</b> : Observable<div class="sub-desc">Only call the handler if the event was fired on the target Observable, <i>not</i>
111if the event was bubbled up from a child Observable.</div></li>
112</ul><br>
113<p>
114<b>Combining Options</b><br>
115Using the options argument, it is possible to combine different types of listeners:<br>
116<br>
117A delayed, one-time listener.
118<pre><code>myDataView.on(<em>'click'</em>, this.onClick, this, {
119single: true,
120delay: 100
121});</code></pre>
122<p>
123<b>Attaching multiple handlers in 1 call</b><br>
124The method also allows for a single argument to be passed which is a config object containing properties
125which specify multiple handlers.
126<p>
127<pre><code>myGridPanel.on({
128<em>'click'</em> : {
129    fn: this.onClick,
130    scope: this,
131    delay: 100
132},
133<em>'mouseover'</em> : {
134    fn: this.onMouseOver,
135    scope: this
136},
137<em>'mouseout'</em> : {
138    fn: this.onMouseOut,
139    scope: this
140}
141});</code></pre>
142<p>
143Or a shorthand syntax:<br>
144<pre><code>myGridPanel.on({
145<em>'click'</em> : this.onClick,
146<em>'mouseover'</em> : this.onMouseOver,
147<em>'mouseout'</em> : this.onMouseOut,
148 scope: this
149});</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#addListener" ext:member="#addListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-enableBubble"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-enableBubble">enableBubble</a></b>(&nbsp;<code>String/Array&nbsp;events</code>&nbsp;)
150    :
151                                        void<div class="mdesc"><div class="short">Enables events fired by this Observable to bubble up an owner hierarchy by calling
152this.getBubbleTarget() if present....</div><div class="long"><p>Enables events fired by this Observable to bubble up an owner hierarchy by calling
153<code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>
154<p>This is commonly used by Ext.Components to bubble events to owner Containers. See <a href="output/Ext.Component.getBubbleTarget.html" ext:cls="Ext.Component.getBubbleTarget">Ext.Component.getBubbleTarget</a>. The default
155implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to
156access the required target more quickly.</p>
157<p>Example:</p><pre><code>Ext.override(Ext.form.Field, {
158    <i>//  Add functionality to Field&#39;s initComponent to enable the change event to bubble</i>
159    initComponent : Ext.form.Field.prototype.initComponent.createSequence(<b>function</b>() {
160        this.enableBubble(<em>'change'</em>);
161    }),
162
163    <i>//  We know that we want Field&#39;s events to bubble directly to the FormPanel.</i>
164    getBubbleTarget : <b>function</b>() {
165        <b>if</b> (!this.formPanel) {
166            this.formPanel = this.findParentByType(<em>'form'</em>);
167        }
168        <b>return</b> this.formPanel;
169    }
170});
171
172<b>var</b> myForm = <b>new</b> Ext.formPanel({
173    title: <em>'User Details'</em>,
174    items: [{
175        ...
176    }],
177    listeners: {
178        change: <b>function</b>() {
179            <i>// Title goes red <b>if</b> form has been modified.</i>
180            myForm.header.setStyle(<em>'color'</em>, <em>'red'</em>);
181        }
182    }
183});</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>events</code> : String/Array<div class="sub-desc">The event name to bubble, or an Array of event names.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#enableBubble" ext:member="#enableBubble" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-fireEvent"></a><b><a href="source/Observable.html#method-Ext.util.Observable-fireEvent">fireEvent</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Object...&nbsp;args</code>&nbsp;)
184    :
185                                        Boolean<div class="mdesc"><div class="short">Fires the specified event with the passed parameters (minus the event name).
186An event may be set to bubble up an Obse...</div><div class="long"><p>Fires the specified event with the passed parameters (minus the event name).</p>
187<p>An event may be set to bubble up an Observable parent hierarchy (See <a href="output/Ext.Component.html#Ext.Component-getBubbleTarget" ext:member="getBubbleTarget" ext:cls="Ext.Component">Ext.Component.getBubbleTarget</a>)
188by calling <a href="output/Ext.util.Observable.html#Ext.util.Observable-enableBubble" ext:member="enableBubble" ext:cls="Ext.util.Observable">enableBubble</a>.</p><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to fire.</div></li><li><code>args</code> : Object...<div class="sub-desc">Variable number of parameters are passed to handlers.</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">returns false if any of the handlers return false otherwise it returns true.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#fireEvent" ext:member="#fireEvent" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-formUpdate"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-formUpdate">formUpdate</a></b>(&nbsp;<code>String/HTMLElement&nbsp;form</code>,&nbsp;<span title="Optional" class="optional">[<code>String&nbsp;url</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Boolean&nbsp;reset</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Function&nbsp;callback</code>]</span>&nbsp;)
189    :
190                                        void<div class="mdesc"><div class="short">Performs an asynchronous form post, updating this element with the response. If the form has the attribute
191enctype="&lt;...</div><div class="long"><p>Performs an asynchronous form post, updating this element with the response. If the form has the attribute
192enctype="<a href="http://www.faqs.org/rfcs/rfc2388.html">multipart/form-data</a>", it assumes it's a file upload.
193Uses this.sslBlankUrl for SSL file uploads to prevent IE security warning.</p>
194<p>File uploads are not performed using normal "Ajax" techniques, that is they are <b>not</b>
195performed using XMLHttpRequests. Instead the form is submitted in the standard manner with the
196DOM <code>&lt;form></code> element temporarily modified to have its
197<a href="http://www.w3.org/TR/REC-html40/present/frames.html#adef-target">target</a> set to refer
198to a dynamically generated, hidden <code>&lt;iframe></code> which is inserted into the document
199but removed after the return data has been gathered.</p>
200<p>Be aware that file upload packets, sent with the content type <a href="http://www.faqs.org/rfcs/rfc2388.html">multipart/form-data</a>
201and some server technologies (notably JEE) may require some custom processing in order to
202retrieve parameter names and parameter values from the packet content.</p><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>form</code> : String/HTMLElement<div class="sub-desc">The form Id or form element</div></li><li><code>url</code> : String<div class="sub-desc">(optional) The url to pass the form to. If omitted the action attribute on the form will be used.</div></li><li><code>reset</code> : Boolean<div class="sub-desc">(optional) Whether to try to reset the form after the update</div></li><li><code>callback</code> : Function<div class="sub-desc">(optional) Callback when transaction is complete. The following
203parameters are passed:<ul>
204<li><b>el</b> : Ext.Element<p class="sub-desc">The Element being updated.</p></li>
205<li><b>success</b> : Boolean<p class="sub-desc">True for success, false for failure.</p></li>
206<li><b>response</b> : XMLHttpRequest<p class="sub-desc">The XMLHttpRequest which processed the update.</p></li></ul></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-getDefaultRenderer"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-getDefaultRenderer">getDefaultRenderer</a></b>()
207    :
208                                        void<div class="mdesc"><div class="short">This is an overrideable method which returns a reference to a default
209renderer class if none is specified when creati...</div><div class="long">This is an overrideable method which returns a reference to a default
210renderer class if none is specified when creating the Ext.Updater.
211Defaults to <a href="output/Ext.Updater.BasicRenderer.html" ext:cls="Ext.Updater.BasicRenderer">Ext.Updater.BasicRenderer</a><div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-getEl"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-getEl">getEl</a></b>()
212    :
213                                        Ext.Element<div class="mdesc"><div class="short">Get the Element this Updater is bound to</div><div class="long">Get the Element this Updater is bound to<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li><code>Ext.Element</code><div class="sub-desc">The element</div></li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-getRenderer"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-getRenderer">getRenderer</a></b>()
214    :
215                                        Object<div class="mdesc"><div class="short">Returns the current content renderer for this Updater. See Ext.Updater.BasicRenderer.render for more details.</div><div class="long">Returns the current content renderer for this Updater. See <a href="output/Ext.Updater.BasicRenderer.html#Ext.Updater.BasicRenderer-render" ext:member="render" ext:cls="Ext.Updater.BasicRenderer">Ext.Updater.BasicRenderer.render</a> for more details.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li><code>Object</code><div class="sub-desc"></div></li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-hasListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-hasListener">hasListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>&nbsp;)
216    :
217                                        Boolean<div class="mdesc"><div class="short">Checks to see if this object has any listeners for a specified event</div><div class="long">Checks to see if this object has any listeners for a specified event<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to check for</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">True if the event is being listened for, else false</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#hasListener" ext:member="#hasListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-isAutoRefreshing"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-isAutoRefreshing">isAutoRefreshing</a></b>()
218    :
219                                        void<div class="mdesc"><div class="short">Returns true if the Updater is currently set to auto refresh its content (see startAutoRefresh), otherwise false.</div><div class="long">Returns true if the Updater is currently set to auto refresh its content (see <a href="output/Ext.Updater.html#Ext.Updater-startAutoRefresh" ext:member="startAutoRefresh" ext:cls="Ext.Updater">startAutoRefresh</a>), otherwise false.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-isUpdating"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-isUpdating">isUpdating</a></b>()
220    :
221                                        Boolean<div class="mdesc"><div class="short">Returns true if an update is in progress, otherwise false.</div><div class="long">Returns true if an update is in progress, otherwise false.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc"></div></li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-on"></a><b><a href="source/Observable.html#method-Ext.util.Observable-on">on</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;options</code>]</span>&nbsp;)
222    :
223                                        void<div class="mdesc"><div class="short">Appends an event handler to this object (shorthand for addListener.)</div><div class="long">Appends an event handler to this object (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
224<b>If omitted, defaults to the object which fired the event.</b></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#on" ext:member="#on" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-purgeListeners"></a><b><a href="source/Observable.html#method-Ext.util.Observable-purgeListeners">purgeListeners</a></b>()
225    :
226                                        void<div class="mdesc"><div class="short">Removes all listeners for this object</div><div class="long">Removes all listeners for this object<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#purgeListeners" ext:member="#purgeListeners" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-refresh"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-refresh">refresh</a></b>(&nbsp;<span title="Optional" class="optional">[<code>Function&nbsp;callback</code>]</span>&nbsp;)
227    :
228                                        void<div class="mdesc"><div class="short">Refresh the element with the last used url or defaultUrl. If there is no url, it returns immediately</div><div class="long">Refresh the element with the last used url or defaultUrl. If there is no url, it returns immediately<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>callback</code> : Function<div class="sub-desc">(optional) Callback when transaction is complete - called with signature (oElement, bSuccess)</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-relayEvents"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-relayEvents">relayEvents</a></b>(&nbsp;<code>Object&nbsp;o</code>,&nbsp;<code>Array&nbsp;events</code>&nbsp;)
229    :
230                                        void<div class="mdesc"><div class="short">Relays selected events from the specified Observable as if the events were fired by this.</div><div class="long">Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object<div class="sub-desc">The Observable whose events this object is to relay.</div></li><li><code>events</code> : Array<div class="sub-desc">Array of event names to relay.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#relayEvents" ext:member="#relayEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-removeListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-removeListener">removeListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>&nbsp;)
231    :
232                                        void<div class="mdesc"><div class="short">Removes an event handler.</div><div class="long">Removes an event handler.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#removeListener" ext:member="#removeListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-resumeEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-resumeEvents">resumeEvents</a></b>()
233    :
234                                        void<div class="mdesc"><div class="short">Resume firing events. (see suspendEvents)
235If events were suspended using the queueSuspended parameter, then all
236event...</div><div class="long">Resume firing events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-suspendEvents" ext:member="suspendEvents" ext:cls="Ext.util.Observable">suspendEvents</a>)
237If events were suspended using the <tt><b>queueSuspended</b></tt> parameter, then all
238events fired during event suspension will be sent to any listeners now.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#resumeEvents" ext:member="#resumeEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-setDefaultUrl"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-setDefaultUrl">setDefaultUrl</a></b>(&nbsp;<code>String/Function&nbsp;defaultUrl</code>&nbsp;)
239    :
240                                        void<div class="mdesc"><div class="short">Sets the default URL used for updates.</div><div class="long">Sets the default URL used for updates.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>defaultUrl</code> : String/Function<div class="sub-desc">The url or a function to call to get the url</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-setRenderer"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-setRenderer">setRenderer</a></b>(&nbsp;<code>Object&nbsp;renderer</code>&nbsp;)
241    :
242                                        void<div class="mdesc"><div class="short">Sets the content renderer for this Updater. See Ext.Updater.BasicRenderer.render for more details.</div><div class="long">Sets the content renderer for this Updater. See <a href="output/Ext.Updater.BasicRenderer.html#Ext.Updater.BasicRenderer-render" ext:member="render" ext:cls="Ext.Updater.BasicRenderer">Ext.Updater.BasicRenderer.render</a> for more details.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>renderer</code> : Object<div class="sub-desc">The object implementing the render() method</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-showLoading"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-showLoading">showLoading</a></b>()
243    :
244                                        void<div class="mdesc"><div class="short">Display the element's "loading" state. By default, the element is updated with indicatorText. This
245method may be over...</div><div class="long">Display the element's "loading" state. By default, the element is updated with <a href="output/Ext.Updater.html#Ext.Updater-indicatorText" ext:member="indicatorText" ext:cls="Ext.Updater">indicatorText</a>. This
246method may be overridden to perform a custom action while this Updater is actively updating its contents.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-startAutoRefresh"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-startAutoRefresh">startAutoRefresh</a></b>(&nbsp;<code>Number&nbsp;interval</code>,&nbsp;<span title="Optional" class="optional">[<code>String/Object/Function&nbsp;url</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>String/Object&nbsp;params</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Function&nbsp;callback</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Boolean&nbsp;refreshNow</code>]</span>&nbsp;)
247    :
248                                        void<div class="mdesc"><div class="short">Set this element to auto refresh.  Can be canceled by calling stopAutoRefresh.</div><div class="long">Set this element to auto refresh.  Can be canceled by calling <a href="output/Ext.Updater.html#Ext.Updater-stopAutoRefresh" ext:member="stopAutoRefresh" ext:cls="Ext.Updater">stopAutoRefresh</a>.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>interval</code> : Number<div class="sub-desc">How often to update (in seconds).</div></li><li><code>url</code> : String/Object/Function<div class="sub-desc">(optional) The url for this request, a config object in the same format
249supported by <a href="output/Ext.Updater.html#Ext.Updater-load" ext:member="load" ext:cls="Ext.Updater">load</a>, or a function to call to get the url (defaults to the last used url).  Note that while
250the url used in a load call can be reused by this method, other load config options will not be reused and must be
251sepcified as part of a config object passed as this paramter if needed.</div></li><li><code>params</code> : String/Object<div class="sub-desc">(optional) The parameters to pass as either a url encoded string
252"&param1=1&param2=2" or as an object {param1: 1, param2: 2}</div></li><li><code>callback</code> : Function<div class="sub-desc">(optional) Callback when transaction is complete - called with signature (oElement, bSuccess)</div></li><li><code>refreshNow</code> : Boolean<div class="sub-desc">(optional) Whether to execute the refresh now, or wait the interval</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.Updater-stopAutoRefresh"></a><b><a href="source/UpdateManager.html#method-Ext.Updater-stopAutoRefresh">stopAutoRefresh</a></b>()
253    :
254                                        void<div class="mdesc"><div class="short">Stop auto refresh on this element.</div><div class="long">Stop auto refresh on this element.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Updater</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-suspendEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-suspendEvents">suspendEvents</a></b>(&nbsp;<code>Boolean&nbsp;queueSuspended</code>&nbsp;)
255    :
256                                        void<div class="mdesc"><div class="short">Suspend the firing of all events. (see resumeEvents)</div><div class="long">Suspend the firing of all events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a>)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>queueSuspended</code> : Boolean<div class="sub-desc">Pass as true to queue up suspended events to be fired
257after the <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a> call instead of discarding all suspended events;</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#suspendEvents" ext:member="#suspendEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-un"></a><b><a href="source/Observable.html#method-Ext.util.Observable-un">un</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>&nbsp;)
258    :
259                                        void<div class="mdesc"><div class="short">Removes an event handler (shorthand for removeListener.)</div><div class="long">Removes an event handler (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-removeListener" ext:member="removeListener" ext:cls="Ext.util.Observable">removeListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></…

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