var mGrid = Ext.getCmp('regionMainGrid').getSelectionModel();        if (mGrid.hasSelection()) {            var record = mGrid.getLastSelected();            Ext.Ajax.request({                url: '/BscRegion/HasChildren',                params: record.data,                success: function (form, action) {                    var successfully = Ext.decode(form.responseText).success;                    if (successfully) {                        Ext.MessageBox.down('#yes').setText('是?');  // 修T改?弹獭出?消?息￠提示?框ò的?按恪钮￥的?默?认?文?字?                             Ext.MessageBox.down('#no').setText('否?');                        Ext.MessageBox.show({                            title: this.msgTitle,                            msg: '数簓据Y删?除y之?后ó无T法ぁ恢?复′，?是?否?确ā定¨删?除y？?',                            buttons: Ext.Msg.YESNO,                            icon: Ext.Msg.QUESTION,                            fn: this.onDeleteConfirm,                            scope: this                        });                    } else {                        Ext.Msg.alert("提示?", Ext.decode(form.responseText).msg + ",不?能ü删?除y!");                    }                },                failure: function (form, action) {                    Ext.Msg.alert("提示?", "操ù作痢失骸败悒?");                },                scope: this            });        } else {            Ext.Msg.alert('提示?', '请?选?择?要癮删?除y的?数簓据Y！?');        }-------------------------------------------------------------------------------------------mvc:-----------------------------------------------------------------------------------------------------------------------------------------        /// 
        /// 是?否?有瓺子哩节ú点?        /// 
        ///         /// 
             public string HasChildren(Region mRegion)        {            string mReturnStr = string.Empty;            Region mConditions;            IList
     
       mRegions = new List
      
       ();            if (mRegion != null)            {                mConditions = new Region();                mConditions.pId = mRegion.id;                mRegions = RegionSrv.SelectByFields(mConditions);            }            if (mRegions.Count > 0)            {                return                mReturnStr = @"{                success: false,                msg: '有瓺子哩节ú点?'}";            }            return            mReturnStr = @"{            success: true}";        }