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* Ext JS Library 3.0 RC2
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* Copyright(c) 2006-2009, Ext JS, LLC.
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* http://extjs.com/license
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* @class Ext.grid.AbstractSelectionModel
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* @extends Ext.util.Observable
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* Abstract base class for grid SelectionModels. It provides the interface that should be
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* implemented by descendant classes. This class should not be directly instantiated.
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Ext.grid.AbstractSelectionModel = function(){
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Ext.grid.AbstractSelectionModel.superclass.constructor.call(this);
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Ext.extend(Ext.grid.AbstractSelectionModel, Ext.util.Observable, {
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/** @ignore Called by the grid automatically. Do not call directly. */
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init : function(grid){
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* Locks the selections.
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* Unlocks the selections.
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* Returns true if the selections are locked.
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isLocked : function(){
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