EasyUI TreeGrid删除选中行

EasyUI TreeGrid删除选中行后，不刷新数据表（reload），而是将选中的行在数据表中移除，方法是：$tg.treegrid('remove', row.id); //移除当前行

具体删除代码如下所示：

function deleteInd(modelId)
{
	var $tg = $("#treegrid-view-modelInd");
    var row = $tg.treegrid('getSelected');
    
    if (row){
        $.messager.confirm('删除','是否确定删除指标：'+row.name+'?',function(r){
            if (r){
                var indId = row.id;
                
                $.ajax({  
                    url:"data/model/modelIndAction.php" ,  
                    data: {type: 'deleteInd', indId: indId}, 
                    dataType: "json",
                    success: function(back){  
            			if(back.success=='false')
            			{				
            				alert(back.msg);
            			}
            			else
            			{
            				$.messager.show({
            					title:'成功',
            					msg: back.msg+row.name,
            					timeout:3000,
            					showType:'slide'
            				});

            				$tg.treegrid('remove', row.id); //移除当前行
            			}
                    }  
                  });
            }
        });
        
    } else {
    	msgShow('请选择要删除的模型指标！');
    }
}