编辑界面加载

this.store.on("load",this.rendererToGrid.createDelegate(this));  //加载完后再去渲染grid

rendererToGrid:function () {
        if(this.record.schlid!=null && this.record.schlid!=undefined){
            for(var i=0;i<this.store.getCount();i++){
                var row = this.store.getAt(i);
                if(row.data.id==this.record.schlid){
                    this.grid.getSelectionModel().selectRow(i,true);//找到index
                    break;
                }
            }
        }
    },

load是当store加载完后，才去做的一些操作，这样store才能度得到。