docs/output/Ext.ux.grid.RowExpander.html

   1 <div class="body-wrap" xmlns:ext="http://www.extjs.com"><div class="top-tools"><a class="inner-link" href="#Ext.ux.grid.RowExpander-props"><img src="resources/images/default/s.gif" class="item-icon icon-prop">Properties</a>&#13;<a class="inner-link" href="#Ext.ux.grid.RowExpander-methods"><img src="resources/images/default/s.gif" class="item-icon icon-method">Methods</a>&#13;<a class="inner-link" href="#Ext.ux.grid.RowExpander-events"><img src="resources/images/default/s.gif" class="item-icon icon-event">Events</a>&#13;<a class="inner-link" href="#Ext.ux.grid.RowExpander-configs"><img src="resources/images/default/s.gif" class="item-icon icon-config">Config Options</a>&#13;<a class="bookmark" href="../docs/?class=Ext.ux.grid.RowExpander"><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">RowExpander</pre></div><h1>Class <a href="source/RowExpander.html#cls-Ext.ux.grid.RowExpander">Ext.ux.grid.RowExpander</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext.ux.grid</td></tr><tr><td class="label">Defined In:</td><td class="hd-info">RowExpander.js</td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/RowExpander.html#cls-Ext.ux.grid.RowExpander">RowExpander</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">Plugin (ptype = 'rowexpander') that adds the ability to have a Column in a grid which enables\r
   2 a second row body which expands/contracts.  The expand/contract behavior is configurable to react\r
   3 on clicking of the column, double click of the row, and/or hitting enter while a row is selected.</div><div class="hr"></div><a id="Ext.ux.grid.RowExpander-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  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.RowExpander-expandOnDblClick"></a><b><a href="source/RowExpander.html#cfg-Ext.ux.grid.RowExpander-expandOnDblClick">expandOnDblClick</a></b> : Boolean<div class="mdesc"><tt>true</tt> to toggle a row between expanded/collapsed when double clicked\r
   4 (defaults to <tt>true</tt>).</div></td><td class="msource">RowExpander</td></tr><tr class="config-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.RowExpander-expandOnEnter"></a><b><a href="source/RowExpander.html#cfg-Ext.ux.grid.RowExpander-expandOnEnter">expandOnEnter</a></b> : Boolean<div class="mdesc"><tt>true</tt> to toggle selected row(s) between expanded/collapsed when the enter\r
   5 key is pressed (defaults to <tt>true</tt>).</div></td><td class="msource">RowExpander</td></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
   6 object during initialization.  This should ...</div><div class="long"><p>A config object containing one or more event handlers to be added to this
   7 object during initialization.  This should be a valid listeners config object as specified in the
   8 <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>
   9 <br><p><b><u>DOM events from ExtJs <a href="output/Ext.Component.html" ext:cls="Ext.Component">Components</a></u></b></p>
  10 <br><p>While <i>some</i> ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this
  11 is 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
  12 <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
  13 events 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
  14 has been rendered. A plugin can simplify this step:<pre><code><i>// Plugin is configured <b>with</b> a listeners config object.</i>
  15 <i>// The Component is appended to the argument list of all handler functions.</i>
  16 Ext.DomObserver = Ext.extend(Object, {
  17     constructor: <b>function</b>(config) {
  18         this.listeners = config.listeners ? config.listeners : config;
  19     },
  20
  21     <i>// Component passes itself into plugin&#39;s init method</i>
  22     init: <b>function</b>(c) {
  23         <b>var</b> p, l = this.listeners;
  24         <b>for</b> (p <b>in</b> l) {
  25             <b>if</b> (Ext.isFunction(l[p])) {
  26                 l[p] = this.createHandler(l[p], c);
  27             } <b>else</b> {
  28                 l[p].fn = this.createHandler(l[p].fn, c);
  29             }
  30         }
  31
  32         <i>// Add the listeners to the Element immediately following the render call</i>
  33         c.render = c.render.<a href="output/Function.html#Function-createSequence" ext:member="createSequence" ext:cls="Function">createSequence</a>(<b>function</b>() {
  34             <b>var</b> e = c.getEl();
  35             <b>if</b> (e) {
  36                 e.on(l);
  37             }
  38         });
  39     },
  40
  41     createHandler: <b>function</b>(fn, c) {
  42         <b>return</b> <b>function</b>(e) {
  43             fn.call(this, e, c);
  44         };
  45     }
  46 });
  47
  48 <b>var</b> combo = <b>new</b> Ext.form.ComboBox({
  49
  50     <i>// Collapse combo when its element is clicked on</i>
  51     plugins: [ <b>new</b> Ext.DomObserver({
  52         click: <b>function</b>(evt, comp) {
  53             comp.collapse();
  54         }
  55     })],
  56     store: myStore,
  57     typeAhead: true,
  58     mode: <em>'local'</em>,
  59     triggerAction: <em>'all'</em>
  60 });</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.ux.grid.RowExpander-props"></a><h2>Public Properties</h2><div class="no-members">This class has no public properties.</div><a id="Ext.ux.grid.RowExpander-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 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&nbsp;object</code>&nbsp;)
  61     :
  62                                         void<div class="mdesc"><div class="short">Used to define events on this Observable</div><div class="long">Used to define events on this Observable<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>object</code> : Object<div class="sub-desc">The object with the events defined</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;)
  63     :
  64                                         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.
  65 <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.
  66 properties. This may contain any of the following properties:<ul>
  67 <li><b>scope</b> : Object<div class="sub-desc">The scope (<code><b>this</b></code> reference) in which the handler function is executed.
  68 <b>If omitted, defaults to the object which fired the event.</b></div></li>
  69 <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>
  70 <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>
  71 <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
  72 by the specified number of milliseconds. If the event fires again within that time, the original
  73 handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
  74 <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>
  75 if the event was bubbled up from a child Observable.</div></li>
  76 </ul><br>
  77 <p>
  78 <b>Combining Options</b><br>
  79 Using the options argument, it is possible to combine different types of listeners:<br>
  80 <br>
  81 A delayed, one-time listener.
  82 <pre><code>myDataView.on(<em>'click'</em>, this.onClick, this, {
  83     single: true,
  84     delay: 100
  85 });</code></pre>
  86 <p>
  87 <b>Attaching multiple handlers in 1 call</b><br>
  88 The method also allows for a single argument to be passed which is a config object containing properties
  89 which specify multiple handlers.
  90 <p>
  91 <pre><code>myGridPanel.on({
  92     <em>'click'</em> : {
  93         fn: this.onClick,
  94         scope: this,
  95         delay: 100
  96     },
  97     <em>'mouseover'</em> : {
  98         fn: this.onMouseOver,
  99         scope: this
 100     },
 101     <em>'mouseout'</em> : {
 102         fn: this.onMouseOut,
 103         scope: this
 104     }
 105 });</code></pre>
 106 <p>
 107 Or a shorthand syntax:<br>
 108 <pre><code>myGridPanel.on({
 109     <em>'click'</em> : this.onClick,
 110     <em>'mouseover'</em> : this.onMouseOver,
 111     <em>'mouseout'</em> : this.onMouseOut,
 112      scope: this
 113 });</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>Object&nbsp;events</code>&nbsp;)
 114     :
 115                                         void<div class="mdesc"><div class="short">Used to enable bubbling of events</div><div class="long">Used to enable bubbling of events<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>events</code> : Object<div class="sub-desc"></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;)
 116     :
 117                                         Boolean<div class="mdesc"><div class="short">Fires the specified event with the passed parameters (minus the event name).
 118 An 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>
 119 <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>)
 120 by 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 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;)
 121     :
 122                                         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 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;)
 123     :
 124                                         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.
 125 <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>()
 126     :
 127                                         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 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;)
 128     :
 129                                         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;)
 130     :
 131                                         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>()
 132     :
 133                                         void<div class="mdesc"><div class="short">Resume firing events. (see suspendEvents)
 134 If events were suspended using the queueSuspended parameter, then all
 135 event...</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>)
 136 If events were suspended using the <tt><b>queueSuspended</b></tt> parameter, then all
 137 events 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 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;)
 138     :
 139                                         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
 140 after 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;)
 141     :
 142                                         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></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#un" ext:member="#un" ext:cls="Ext.util.Observable">Observable</a></td></tr></tbody></table><a id="Ext.ux.grid.RowExpander-events"></a><h2>Public Events</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Event</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.ux.grid.RowExpander-beforecollapse"></a><b><a href="source/RowExpander.html#event-Ext.ux.grid.RowExpander-beforecollapse">beforecollapse</a></b> :
 143                                       (&nbsp;<code>Object&nbsp;this</code>,&nbsp;<code>Object&nbsp;Ext.data.Record</code>,&nbsp;<code>Object&nbsp;body</code>,&nbsp;<code>Number&nbsp;rowIndex</code>&nbsp;)
 144     <div class="mdesc"><div class="short">Fires before the row collapses. Have the listener return false to prevent the row from collapsing.</div><div class="long">Fires before the row collapses. Have the listener return false to prevent the row from collapsing.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : Object<div class="sub-desc">RowExpander object.</div></li><li><code>Ext.data.Record</code> : Object<div class="sub-desc">Record for the selected row.</div></li><li><code>body</code> : Object<div class="sub-desc">body element for the secondary row.</div></li><li><code>rowIndex</code> : Number<div class="sub-desc">The current row index.</div></li></ul></div></div></div></td><td class="msource">RowExpander</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.RowExpander-beforeexpand"></a><b><a href="source/RowExpander.html#event-Ext.ux.grid.RowExpander-beforeexpand">beforeexpand</a></b> :
 145                                       (&nbsp;<code>Object&nbsp;this</code>,&nbsp;<code>Object&nbsp;Ext.data.Record</code>,&nbsp;<code>Object&nbsp;body</code>,&nbsp;<code>Number&nbsp;rowIndex</code>&nbsp;)
 146     <div class="mdesc"><div class="short">Fires before the row expands. Have the listener return false to prevent the row from expanding.</div><div class="long">Fires before the row expands. Have the listener return false to prevent the row from expanding.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : Object<div class="sub-desc">RowExpander object.</div></li><li><code>Ext.data.Record</code> : Object<div class="sub-desc">Record for the selected row.</div></li><li><code>body</code> : Object<div class="sub-desc">body element for the secondary row.</div></li><li><code>rowIndex</code> : Number<div class="sub-desc">The current row index.</div></li></ul></div></div></div></td><td class="msource">RowExpander</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.RowExpander-collapse"></a><b><a href="source/RowExpander.html#event-Ext.ux.grid.RowExpander-collapse">collapse</a></b> :
 147                                       (&nbsp;<code>Object&nbsp;this</code>,&nbsp;<code>Object&nbsp;Ext.data.Record</code>,&nbsp;<code>Object&nbsp;body</code>,&nbsp;<code>Number&nbsp;rowIndex</code>&nbsp;)
 148     <div class="mdesc"><div class="short">Fires after the row collapses.</div><div class="long">Fires after the row collapses.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : Object<div class="sub-desc">RowExpander object.</div></li><li><code>Ext.data.Record</code> : Object<div class="sub-desc">Record for the selected row.</div></li><li><code>body</code> : Object<div class="sub-desc">body element for the secondary row.</div></li><li><code>rowIndex</code> : Number<div class="sub-desc">The current row index.</div></li></ul></div></div></div></td><td class="msource">RowExpander</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.RowExpander-expand"></a><b><a href="source/RowExpander.html#event-Ext.ux.grid.RowExpander-expand">expand</a></b> :
 149                                       (&nbsp;<code>Object&nbsp;this</code>,&nbsp;<code>Object&nbsp;Ext.data.Record</code>,&nbsp;<code>Object&nbsp;body</code>,&nbsp;<code>Number&nbsp;rowIndex</code>&nbsp;)
 150     <div class="mdesc"><div class="short">Fires after the row expands.</div><div class="long">Fires after the row expands.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : Object<div class="sub-desc">RowExpander object.</div></li><li><code>Ext.data.Record</code> : Object<div class="sub-desc">Record for the selected row.</div></li><li><code>body</code> : Object<div class="sub-desc">body element for the secondary row.</div></li><li><code>rowIndex</code> : Number<div class="sub-desc">The current row index.</div></li></ul></div></div></div></td><td class="msource">RowExpander</td></tr></tbody></table></div>