用UpdatePanel异步展开GridView行数据

在MIS系统中经常用到查询出数据列表后,展开及收缩详细信息操作,下面介绍一种非常直观的异步展开方式,异步的展开方式同时也可以减轻系统压力: 步骤: 1.在你的aspx页面头部注册System.Web.Extensions <%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"     Namespace="System.Web.UI" TagPrefix="asp" %> 2.在form表单里加入ScriptManager <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager> 3.在GridView外嵌套一个UpdatePanel,并指定局部刷新Triggers属性值 <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <asp:GridView ID="gvDemand" runat="server" Width="100%" AutoGenerateColumns="False" DataKeyNames="ID" OnRowCommand="gvDemand_RowCommand"> /**此处为GridView里的内容...脚本有点多,页面全部html代码请点这里下载**/ 此处要注意的地方就是展开部分ID的命名,默认为不显示 </GridView> </ContentTemplate> <Triggers> 　　<asp:AsyncPostBackTrigger ControlID="gvDemand" EventName="RowCommand" /> </Triggers> </asp:UpdatePanel> 4.接下来编写服务器端代码gvDemand_RowCommand 代码 Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->protected void gvDemand_RowCommand(object sender, GridViewCommandEventArgs e)         {             string rowIndex = e.CommandArgument.ToString();             switch (e.CommandName.ToLower())             {                 case "showdetail": //显示详细信息                     int index = 0;                     if (int.Parse(rowIndex) % pager.PageSize == 0)                     { index = pager.PageSize - 1; }                     else                     { index = (int.Parse(rowIndex) % pager.PageSize) - 1; }                     HtmlTableRow trShowDetail = (HtmlTableRow)gvDemand.Rows[index].FindControl("trShowDetail");                     if (trShowDetail != null)                     {                         if (trShowDetail.Visible == false)                         {                             trShowDetail.Visible = true;                             //流程控件处理                             WorkFlow.UserControl.ActionToolBar flowBar = ((WorkFlow.UserControl.ActionToolBar)gvDemand.Rows[index].FindControl("ActionToolBar1"));                             if (flowBar != null)                             {                                 flowBar.BindFlowData();                             }                         }                         else                         {                             trShowDetail.Visible = false;                         }                     }                     break;                 default:                     break;             }         } 5.效果图(点击单据编号即可异步展开下面的详细信息及流程审批信息,再次点击收缩):   OK,到此结束,大家是否有更好的方式来处理呢?欢迎探讨....