Extjs CheckboxSelectionModel 置为无效 选择触发事件详解编程语言

var smQd = new Ext.grid.CheckboxSelectionModel({ 
        renderer:function(value, metaData, record, rowIndex, colIndex, store){ 
                        if((record.data['xgdjzt'].split("-")[0] == 2)||(record.data['khlxzt'].split("-")[0] == 2)){ 
                             return ""; 
                        }else{ 
                            return '<div class="x-grid3-row-checker"> </div>'; 
                        } 
                   }, 
           //不允许使用点击表格形式修改选择 
           handleMouseDown:Ext.emptyFn, 
        listeners:{ 
                      /*'rowselect':function(sm,rowIndex,record){ 
                        console.log('rowselect',rowIndex) 
                      }, 
                      'rowdeselect':function(sm,rowIndex,record){ 
                        console.log('rowdeselect',rowIndex) 
                      },*/ 
                      'selectionchange':function(sm){ 
                          if(sm.getSelections().length>0){ 
                              var select_zyed = 0; 
                              for(var i=0;i<sm.getSelections().length;i++){ 
                                  if((sm.getSelections()[i].data['xgdjzt'].split("-")[0] != 2)&&(sm.getSelections()[i].data['khlxzt'].split("-")[0] != 2)){ 
                                      var jyje_arr = sm.getSelections()[i].data['jyje'].split(","); 
                                    var jyje_sel = ""; 
                                    for(var j = 0; j< jyje_arr.length; j++){ 
                                        jyje_sel += jyje_arr[j]; 
                                    } 
                                      select_zyed = select_zyed + parseFloat(jyje_sel) ; 
                                  } 
                              } 
                              used_ed.setValue(rendererZhMoney(select_zyed)); 
                              //var total_ed_arr = total_ed.getValue().split(","); 
                              var total_ed_arr = Ext.getCmp("total_ed").getValue().split(","); 
                            var total_ed = ""; 
                            for(var j = 0; j< total_ed_arr.length; j++){ 
                                total_ed += total_ed_arr[j]; 
                            } 
                            total_ed = parseFloat(total_ed); 
                            leave_ed.setValue(rendererZhMoney(total_ed-select_zyed)); 
                          }else{ 
                            used_ed.setValue(rendererZhMoney(0)); 
                            //leave_ed.setValue(total_ed.getValue()); 
                            leave_ed.setValue(Ext.getCmp("total_ed").getValue()); 
                          } 
                         
                      }, 
                       'beforerowselect':function(sm,rowIndex,keepExisting,record){ 
                            if((record.data['xgdjzt'].split("-")[0] == 2)||(record.data['khlxzt'].split("-")[0] == 2)){ 
                                return false; 
                            }else{ 
                                return true; 
                            }         
                      } 
                 } 
    });