protected void Tree2_NodeCommand(object sender, TreeCommandEventArgs e) { //int id = Convert.ToInt32(e.Node.NodeID); DataSet ds = bll.筛选用户(Convert.ToInt32(e.Node.NodeID)); DataTable dt = ds.Tables[0].Copy();//复制一份table DataTable source = dt; // 3.绑定到Grid Grid7.DataSource = source;//DataTable Grid7.DataBind(); Grid9.DataSource = source;//DataTable Grid9.DataBind(); }