ext CheckBoxGroup动态生成

     Ext.Ajax.request({
                url:'jsp/insurance/ins_liquidation/data/getPersonInsType.jsp',
                params : {'employeeId':employeeId},
                success: function(response, opts) {
          var res = Ext.util.JSON.decode(response.responseText).root;
          var resLen = res.length;
          var items=[];
          for(var i=0;i<res.length;i++)
          {
           var d=res[i];
           var chk = {boxLabel: d.insName, name: d.insTypesId,inputValue:d.insTypesId,checked:true};
           items.push(chk);
          }  
          //定义多选组
          var CheckBoxGroupTypes = new Ext.form.CheckboxGroup(
          {
           xtype: 'checkboxgroup',  
           fieldLabel: '申请清算险种',  
           id:'insTypeCb',
           name :'insTypeCb', 
           columns: resLen,
           anchor:"95%",
           msgTarget:"side",
           width:400
          });
         CheckBoxGroupTypes.items= items;
                 var cbp = Ext.getCmp('checkBoxPanel');
                 cbp.add(CheckBoxGroupTypes);
                 cbp.doLayout();
                },
                failure: function(response, opts) {
         
                }
 });