1.1  创建CheckboxSelectionModel对象

1，新建空的EOS6.3的工程，新建com.towngas.tcis. gridlock构件包；

2，在com.towngas.tcis.gridlock构件包的“展现”节点下的“页面资源”节点中创建一个文件夹，命名为gridlock；

3，在新建的文件夹中创建gridlockUi.js文件，gridlockEv.js文件。

4，在gridlockUi.js文件中创建对象：

var smLock = new Ext.grid.CheckboxSelectionModel({

singleSelect : false,

                              handleMouseDown : function(g,rowIndex, e) {

                                          if(e.button !== 0 || this.isLocked()) {

                                                 return;

                                          }

                                          varview = this.grid.getView();

                                          if(e.shiftKey && !this.singleSelect

                                                        &&this.last !== false) {

                                                 varlast = this.last;

                                                 this.selectRange(last,rowIndex, e.ctrlKey);

                                                 this.last= last;

                                                 view.focusRow(rowIndex);

                                          }else {

                                                 varisSelected = this.isSelected(rowIndex);

                                                 if(isSelected) {

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                                                        this.deselectRow(rowIndex);

                                                 }else if (!isSelected || this.getCount() > 1) {

                                                        this.selectRow(rowIndex,true);

                                                        view.focusRow(rowIndex);

                                                 }

                                          }

                                   },

                                   isLocked: Ext.emptyFn,

                                   initEvents: function() {

                                          Ext.grid.CheckboxSelectionModel.superclass.initEvents

                                                        .call(this);

                                          this.grid.on('render',function() {

                                                               varview = this.grid.getView();

                                                               view.mainBody.on('mousedown',

                                                                             this.onMouseDown,this);

                                                               Ext.fly(view.lockedInnerHd).on('mousedown',

                                                                             this.onHdMouseDown,this);

                                                        }, this);

                                   }

                     });