{
                             fieldLabel: '状态',
                             xtype:"panel",//panel  
                             layout:"table",
                             isFormField:true,
                             defaultType: 'radio',
                             items: [{
                                 boxLabel: '启用',
                                 name: 'flag',
                                 id: 'flag_yes',
                                 checked: flag=="启用"?true:false,
                                 inputValue: '0'
                             },{  
                                 boxLabel: '禁用',
                                 name: 'flag',
                                 id: 'flag_no',
                                 checked: flag=="禁用"?true:false,
                                 inputValue: '1'
                             }]
 }表单提交错误：B.validate is not a function，换成以下，错误解决
{
        xtype: 'radiogroup',  
         id   : 'atype',  
         fieldLabel: "选项类型",  
         items : [{  
         boxLabel: '单选',  
         name: 'sur_atype',  
         inputValue:'sing',  
         checked : true  
            },{  
         boxLabel: '多选',  
         name: 'sur_atype',  
         inputValue:'dou'  
            }]  
  }