docs/output/Ext.grid.CellSelectionModel.html

   1 <div class="body-wrap" xmlns:ext="http://www.extjs.com"><div class="top-tools"><a class="inner-link" href="#Ext.grid.CellSelectionModel-props"><img src="../resources/images/default/s.gif" class="item-icon icon-prop">Properties</a>&#13;<a class="inner-link" href="#Ext.grid.CellSelectionModel-methods"><img src="../resources/images/default/s.gif" class="item-icon icon-method">Methods</a>&#13;<a class="inner-link" href="#Ext.grid.CellSelectionModel-events"><img src="../resources/images/default/s.gif" class="item-icon icon-event">Events</a>&#13;<a class="inner-link" href="#Ext.grid.CellSelectionModel-configs"><img src="../resources/images/default/s.gif" class="item-icon icon-config">Config Options</a>&#13;<a class="bookmark" href="../docs/?class=Ext.grid.CellSelectionModel"><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"><a href="output/Ext.grid.AbstractSelectionModel.html" ext:member="" ext:cls="Ext.grid.AbstractSelectionModel">AbstractSelectionModel</a>&#13;&nbsp;&nbsp;&nbsp;&nbsp;<img src="resources/elbow-end.gif">CellSelectionModel</pre></div><h1>Class <a href="source/CellSelectionModel.html#cls-Ext.grid.CellSelectionModel">Ext.grid.CellSelectionModel</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext.grid</td></tr><tr><td class="label">Defined In:</td><td class="hd-info"><a href="source/CellSelectionModel.html#cls-Ext.grid.CellSelectionModel">CellSelectionModel.js</a></td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/CellSelectionModel.html#cls-Ext.grid.CellSelectionModel">CellSelectionModel</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info"><a href="output/Ext.grid.AbstractSelectionModel.html" ext:cls="Ext.grid.AbstractSelectionModel" ext:member="">AbstractSelectionModel</a></td></tr></table><div class="description">This class provides the basic implementation for <i>single</i> <b>cell</b> selection in a grid.
   2 The object stored as the selection contains the following properties:
   3 <div class="mdetail-params"><ul>
   4 <li><b>cell</b> : see <a href="output/Ext.grid.CellSelectionModel.html#Ext.grid.CellSelectionModel-getSelectedCell" ext:member="getSelectedCell" ext:cls="Ext.grid.CellSelectionModel">getSelectedCell</a>
   5 <li><b>record</b> : Ext.data.record The <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Record</a>
   6 which provides the data for the row containing the selection</li>
   7 </ul></div></div><div class="hr"></div><a id="Ext.grid.CellSelectionModel-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
   8 object during initialization.  This should ...</div><div class="long"><p>A config object containing one or more event handlers to be added to this
   9 object during initialization.  This should be a valid listeners config object as specified in the
  10 <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>
  11 <br><p><b><u>DOM events from ExtJs <a href="output/Ext.Component.html" ext:cls="Ext.Component">Components</a></u></b></p>
  12 <br><p>While <i>some</i> ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this
  13 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
  14 <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
  15 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
  16 has been rendered. A plugin can simplify this step:<pre><code><i>// Plugin is configured <b>with</b> a listeners config object.</i>
  17 <i>// The Component is appended to the argument list of all handler functions.</i>
  18 Ext.DomObserver = Ext.extend(Object, {
  19     constructor: <b>function</b>(config) {
  20         this.listeners = config.listeners ? config.listeners : config;
  21     },
  22
  23     <i>// Component passes itself into plugin&#39;s init method</i>
  24     init: <b>function</b>(c) {
  25         <b>var</b> p, l = this.listeners;
  26         <b>for</b> (p <b>in</b> l) {
  27             <b>if</b> (Ext.isFunction(l[p])) {
  28                 l[p] = this.createHandler(l[p], c);
  29             } <b>else</b> {
  30                 l[p].fn = this.createHandler(l[p].fn, c);
  31             }
  32         }
  33
  34         <i>// Add the listeners to the Element immediately following the render call</i>
  35         c.render = c.render.<a href="output/Function.html#Function-createSequence" ext:member="createSequence" ext:cls="Function">createSequence</a>(<b>function</b>() {
  36             <b>var</b> e = c.getEl();
  37             <b>if</b> (e) {
  38                 e.on(l);
  39             }
  40         });
  41     },
  42
  43     createHandler: <b>function</b>(fn, c) {
  44         <b>return</b> <b>function</b>(e) {
  45             fn.call(this, e, c);
  46         };
  47     }
  48 });
  49
  50 <b>var</b> combo = <b>new</b> Ext.form.ComboBox({
  51
  52     <i>// Collapse combo when its element is clicked on</i>
  53     plugins: [ <b>new</b> Ext.DomObserver({
  54         click: <b>function</b>(evt, comp) {
  55             comp.collapse();
  56         }
  57     })],
  58     store: myStore,
  59     typeAhead: true,
  60     mode: <em>'local'</em>,
  61     triggerAction: <em>'all'</em>
  62 });</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.grid.CellSelectionModel-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  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.AbstractSelectionModel-grid"></a><b><a href="source/AbstractSelectionModel.html#prop-Ext.grid.AbstractSelectionModel-grid">grid</a></b> : Object<div class="mdesc">The GridPanel for which this SelectionModel is handling selection. Read-only.</div></td><td class="msource"><a href="output/Ext.grid.AbstractSelectionModel.html#grid" ext:member="#grid" ext:cls="Ext.grid.AbstractSelectionModel">AbstractSelectionModel</a></td></tr></tbody></table><a id="Ext.grid.CellSelectionModel-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.grid.CellSelectionModel-CellSelectionModel"></a><b><a href="source/CellSelectionModel.html#cls-Ext.grid.CellSelectionModel">CellSelectionModel</a></b>(&nbsp;<code>Object&nbsp;config</code>&nbsp;)
  63     <div class="mdesc"><div class="short"></div><div class="long"><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>config</code> : Object<div class="sub-desc">The object containing the configuration of this model.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">CellSelectionModel</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;)
  64     :
  65                                         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>
  66 or 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.
  67 Usage:<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;)
  68     :
  69                                         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.
  70 <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.
  71 properties. This may contain any of the following properties:<ul>
  72 <li><b>scope</b> : Object<div class="sub-desc">The scope (<code><b>this</b></code> reference) in which the handler function is executed.
  73 <b>If omitted, defaults to the object which fired the event.</b></div></li>
  74 <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>
  75 <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>
  76 <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
  77 by the specified number of milliseconds. If the event fires again within that time, the original
  78 handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
  79 <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>
  80 if the event was bubbled up from a child Observable.</div></li>
  81 </ul><br>
  82 <p>
  83 <b>Combining Options</b><br>
  84 Using the options argument, it is possible to combine different types of listeners:<br>
  85 <br>
  86 A delayed, one-time listener.
  87 <pre><code>myDataView.on(<em>'click'</em>, this.onClick, this, {
  88 single: true,
  89 delay: 100
  90 });</code></pre>
  91 <p>
  92 <b>Attaching multiple handlers in 1 call</b><br>
  93 The method also allows for a single argument to be passed which is a config object containing properties
  94 which specify multiple handlers.
  95 <p>
  96 <pre><code>myGridPanel.on({
  97 <em>'click'</em> : {
  98     fn: this.onClick,
  99     scope: this,
 100     delay: 100
 101 },
 102 <em>'mouseover'</em> : {
 103     fn: this.onMouseOver,
 104     scope: this
 105 },
 106 <em>'mouseout'</em> : {
 107     fn: this.onMouseOut,
 108     scope: this
 109 }
 110 });</code></pre>
 111 <p>
 112 Or a shorthand syntax:<br>
 113 <pre><code>myGridPanel.on({
 114 <em>'click'</em> : this.onClick,
 115 <em>'mouseover'</em> : this.onMouseOver,
 116 <em>'mouseout'</em> : this.onMouseOut,
 117  scope: this
 118 });</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 "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.CellSelectionModel-clearSelections"></a><b><a href="source/CellSelectionModel.html#method-Ext.grid.CellSelectionModel-clearSelections">clearSelections</a></b>(&nbsp;<code>Boolean&nbsp;preventNotify</code>&nbsp;)
 119     :
 120                                         void<div class="mdesc"><div class="short">If anything is selected, clears all selections and fires the selectionchange event.</div><div class="long">If anything is selected, clears all selections and fires the selectionchange event.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>preventNotify</code> : Boolean<div class="sub-desc"><tt>true</tt> to prevent the gridview from
 121 being notified about the change.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">CellSelectionModel</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;)
 122     :
 123                                         void<div class="mdesc"><div class="short">Enables events fired by this Observable to bubble up an owner hierarchy by calling
 124 this.getBubbleTarget() if present....</div><div class="long"><p>Enables events fired by this Observable to bubble up an owner hierarchy by calling
 125 <code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>
 126 <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
 127 implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to
 128 access the required target more quickly.</p>
 129 <p>Example:</p><pre><code>Ext.override(Ext.form.Field, {
 130     <i>//  Add functionality to Field&#39;s initComponent to enable the change event to bubble</i>
 131     initComponent : Ext.form.Field.prototype.initComponent.createSequence(<b>function</b>() {
 132         this.enableBubble(<em>'change'</em>);
 133     }),
 134
 135     <i>//  We know that we want Field&#39;s events to bubble directly to the FormPanel.</i>
 136     getBubbleTarget : <b>function</b>() {
 137         <b>if</b> (!this.formPanel) {
 138             this.formPanel = this.findParentByType(<em>'form'</em>);
 139         }
 140         <b>return</b> this.formPanel;
 141     }
 142 });
 143
 144 <b>var</b> myForm = <b>new</b> Ext.formPanel({
 145     title: <em>'User Details'</em>,
 146     items: [{
 147         ...
 148     }],
 149     listeners: {
 150         change: <b>function</b>() {
 151             <i>// Title goes red <b>if</b> form has been modified.</i>
 152             myForm.header.setStyle(<em>'color'</em>, <em>'red'</em>);
 153         }
 154     }
 155 });</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;)
 156     :
 157                                         Boolean<div class="mdesc"><div class="short">Fires the specified event with the passed parameters (minus the event name).
 158 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>
 159 <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>)
 160 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 "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.CellSelectionModel-getSelectedCell"></a><b><a href="source/CellSelectionModel.html#method-Ext.grid.CellSelectionModel-getSelectedCell">getSelectedCell</a></b>()
 161     :
 162                                         Array<div class="mdesc"><div class="short">Returns an array containing the row and column indexes of the currently selected cell
 163 (e.g., [0, 0]), or null if none...</div><div class="long">Returns an array containing the row and column indexes of the currently selected cell
 164 (e.g., [0, 0]), or null if none selected. The array has elements:
 165 <div class="mdetail-params"><ul>
 166 <li><b>rowIndex</b> : Number<p class="sub-desc">The index of the selected row</p></li>
 167 <li><b>cellIndex</b> : Number<p class="sub-desc">The index of the selected cell.
 168 Due to possible column reordering, the cellIndex should <b>not</b> be used as an
 169 index into the Record's data. Instead, use the cellIndex to determine the <i>name</i>
 170 of the selected cell and use the field name to retrieve the data value from the record:<pre><code><i>// get name</i>
 171 <b>var</b> fieldName = grid.getColumnModel().getDataIndex(cellIndex);
 172 <i>// get data value based on name</i>
 173 <b>var</b> data = record.get(fieldName);</code></pre></p></li>
 174 </ul></div><div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li><code>Array</code><div class="sub-desc">An array containing the row and column indexes of the selected cell, or null if none selected.</div></li></ul></div></div></div></td><td class="msource">CellSelectionModel</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;)
 175     :
 176                                         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.grid.CellSelectionModel-hasSelection"></a><b><a href="source/CellSelectionModel.html#method-Ext.grid.CellSelectionModel-hasSelection">hasSelection</a></b>()
 177     :
 178                                         Boolean<div class="mdesc"><div class="short">Returns true if there is a selection.</div><div class="long">Returns <tt>true</tt> if there is a selection.<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">CellSelectionModel</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.grid.AbstractSelectionModel-isLocked"></a><b><a href="source/AbstractSelectionModel.html#method-Ext.grid.AbstractSelectionModel-isLocked">isLocked</a></b>()
 179     :
 180                                         Boolean<div class="mdesc"><div class="short">Returns true if the selections are locked.</div><div class="long">Returns true if the selections are locked.<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"><a href="output/Ext.grid.AbstractSelectionModel.html#isLocked" ext:member="#isLocked" ext:cls="Ext.grid.AbstractSelectionModel">AbstractSelectionModel</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.grid.AbstractSelectionModel-lock"></a><b><a href="source/AbstractSelectionModel.html#method-Ext.grid.AbstractSelectionModel-lock">lock</a></b>()
 181     :
 182                                         void<div class="mdesc"><div class="short">Locks the selections.</div><div class="long">Locks the selections.<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.grid.AbstractSelectionModel.html#lock" ext:member="#lock" ext:cls="Ext.grid.AbstractSelectionModel">AbstractSelectionModel</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;)
 183     :
 184                                         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.
 185 <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>()
 186     :
 187                                         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;)
 188     :
 189                                         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;)
 190     :
 191                                         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>()
 192     :
 193                                         void<div class="mdesc"><div class="short">Resume firing events. (see suspendEvents)
 194 If events were suspended using the queueSuspended parameter, then all
 195 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>)
 196 If events were suspended using the <tt><b>queueSuspended</b></tt> parameter, then all
 197 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 "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.CellSelectionModel-select"></a><b><a href="source/CellSelectionModel.html#method-Ext.grid.CellSelectionModel-select">select</a></b>(&nbsp;<code>Number&nbsp;rowIndex</code>,&nbsp;<code>Number&nbsp;colIndex</code>,&nbsp;<span title="Optional" class="optional">[<code>Boolean&nbsp;preventViewNotify</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Boolean&nbsp;preventFocus</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Ext.data.Record&nbsp;r</code>]</span>&nbsp;)
 198     :
 199                                         void<div class="mdesc"><div class="short">Selects a cell.  Before selecting a cell, fires the
 200 beforecellselect event.  If this check is satisfied the cell
 201 will...</div><div class="long">Selects a cell.  Before selecting a cell, fires the
 202 <a href="output/Ext.grid.CellSelectionModel.html#Ext.grid.CellSelectionModel-beforecellselect" ext:member="beforecellselect" ext:cls="Ext.grid.CellSelectionModel">beforecellselect</a> event.  If this check is satisfied the cell
 203 will be selected and followed up by  firing the <a href="output/Ext.grid.CellSelectionModel.html#Ext.grid.CellSelectionModel-cellselect" ext:member="cellselect" ext:cls="Ext.grid.CellSelectionModel">cellselect</a> and
 204 <a href="output/Ext.grid.CellSelectionModel.html#Ext.grid.CellSelectionModel-selectionchange" ext:member="selectionchange" ext:cls="Ext.grid.CellSelectionModel">selectionchange</a> events.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>rowIndex</code> : Number<div class="sub-desc">The index of the row to select</div></li><li><code>colIndex</code> : Number<div class="sub-desc">The index of the column to select</div></li><li><code>preventViewNotify</code> : Boolean<div class="sub-desc">(optional) Specify <tt>true</tt> to
 205 prevent notifying the view (disables updating the selected appearance)</div></li><li><code>preventFocus</code> : Boolean<div class="sub-desc">(optional) Whether to prevent the cell at
 206 the specified rowIndex / colIndex from being focused.</div></li><li><code>r</code> : Ext.data.Record<div class="sub-desc">(optional) The record to select</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">CellSelectionModel</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;)
 207     :
 208                                         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
 209 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;)
 210     :
 211                                         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><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.AbstractSelectionModel-unlock"></a><b><a href="source/AbstractSelectionModel.html#method-Ext.grid.AbstractSelectionModel-unlock">unlock</a></b>()
 212     :
 213                                         void<div class="mdesc"><div class="short">Unlocks the selections.</div><div class="long">Unlocks the selections.<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.grid.AbstractSelectionModel.html#unlock" ext:member="#unlock" ext:cls="Ext.grid.AbstractSelectionModel">AbstractSelectionModel</a></td></tr></tbody></table><a id="Ext.grid.CellSelectionModel-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.grid.CellSelectionModel-beforecellselect"></a><b><a href="source/CellSelectionModel.html#event-Ext.grid.CellSelectionModel-beforecellselect">beforecellselect</a></b> :
 214                                       (&nbsp;<code>SelectionModel&nbsp;this</code>,&nbsp;<code>Number&nbsp;rowIndex</code>,&nbsp;<code>Number&nbsp;colIndex</code>&nbsp;)
 215     <div class="mdesc"><div class="short">Fires before a cell is selected, return false to cancel the selection.</div><div class="long">Fires before a cell is selected, return false to cancel the selection.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : SelectionModel<div class="sub-desc"></div></li><li><code>rowIndex</code> : Number<div class="sub-desc">The selected row index</div></li><li><code>colIndex</code> : Number<div class="sub-desc">The selected cell index</div></li></ul></div></div></div></td><td class="msource">CellSelectionModel</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.CellSelectionModel-cellselect"></a><b><a href="source/CellSelectionModel.html#event-Ext.grid.CellSelectionModel-cellselect">cellselect</a></b> :
 216                                       (&nbsp;<code>SelectionModel&nbsp;this</code>,&nbsp;<code>Number&nbsp;rowIndex</code>,&nbsp;<code>Number&nbsp;colIndex</code>&nbsp;)
 217     <div class="mdesc"><div class="short">Fires when a cell is selected.</div><div class="long">Fires when a cell is selected.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : SelectionModel<div class="sub-desc"></div></li><li><code>rowIndex</code> : Number<div class="sub-desc">The selected row index</div></li><li><code>colIndex</code> : Number<div class="sub-desc">The selected cell index</div></li></ul></div></div></div></td><td class="msource">CellSelectionModel</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.CellSelectionModel-selectionchange"></a><b><a href="source/CellSelectionModel.html#event-Ext.grid.CellSelectionModel-selectionchange">selectionchange</a></b> :
 218                                       (&nbsp;<code>SelectionModel&nbsp;this</code>,&nbsp;<code>Object&nbsp;selection</code>&nbsp;)
 219     <div class="mdesc"><div class="short">Fires when the active selection changes.</div><div class="long">Fires when the active selection changes.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : SelectionModel<div class="sub-desc"></div></li><li><code>selection</code> : Object<div class="sub-desc">null for no selection or an object with two properties
 220 <div class="mdetail-params"><ul>
 221 <li><b>cell</b> : see <a href="output/Ext.grid.CellSelectionModel.html#Ext.grid.CellSelectionModel-getSelectedCell" ext:member="getSelectedCell" ext:cls="Ext.grid.CellSelectionModel">getSelectedCell</a>
 222 <li><b>record</b> : Ext.data.record<p class="sub-desc">The <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Record</a>
 223 which provides the data for the row containing the selection</p></li>
 224 </ul></div></div></li></ul></div></div></div></td><td class="msource">CellSelectionModel</td></tr></tbody></table></div>