即使绑定后，GridView也不可见
[英]Gridview not visible even after binding
问题描述
I got stucked to some weird condition where I have a gridview inside a ajax toolkit tabcontainer. 
我陷入了某种奇怪的状况，即我在ajax工具包tabcontainer内有一个gridview。 On tab index change i am binding grid. 在选项卡索引更改上，我绑定网格。 But nothing happend. 但是什么也没发生。 Grid is not appearing. 网格未出现。 I have check the following 我检查了以下内容
- Viewstate 观看状态
- Visibility of grid 网格的可见性
- Visibility of the parent table. 父表的可见性。
- Data is coming from the method 数据来自方法
- visibility of the tab panel 标签面板的可见性
Even i have debugged and added watch to check if its getting null before loading the page. 甚至我已经调试并添加了watch，以在加载页面之前检查其是否为null。
Please help me out 请帮帮我
** BELOW IS THE UPDATED CODE** **下面是更新的代码**
<HTMLCode>
<Toolkit:TabPanel HeaderText="Pending Challans" ID="tpPendingChallan" runat="server" Height="200px" >
<ContentTemplate>
<table style="width: 100%">
<tr>
<td>
<asp:GridView ID="gvPendingChallans" runat="server" AutoGenerateColumns="True" CellPadding="4" Width="100%" OnPageIndexChanging="gvPendingChallans_PageIndexChanging"
OnRowCommand="gvPendingChallans_RowCommand" AllowPaging="True" GridLines="None">
</asp:GridView>
</td>
</tr>
</table>
</ContentTemplate>
</Toolkit:TabPanel>
</HTMLCode>
======================================================================== ================================================== ======================
<C#>
private void BindPendingChallans()
{
var dat = JobCardManager.DisplayChallan();
gvPendingChallans.DataSource = dat;
gvPendingChallans.DataBind();
}
protected void tcMembers_ActiveTabChanged(object sender, EventArgs e)
{
if(tcMembers.ActiveTabIndex == 6)
{
BindPendingChallans();
}
}
</C#>
1 个解决方案
解决方案1
0 已采纳 2011-05-25 03:39:36
Sorry for miss interpretation of your code with my first answer. 抱歉，我的第一个答案未解释您的代码。 I thought that it just a simple population of grid view, but as review I found that you are using the Ajax Toolkit library and your grid is inside the tab selection. 我认为这只是网格视图的简单填充，但是经过审查，我发现您正在使用Ajax Toolkit库，并且网格位于选项卡中。 You can try this: 您可以尝试以下方法：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="Toolkit" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head2" runat="server">
<title>Untitled Page</title>
<style type="text/css">
.style1
{
font-family: Arial;
color: #3399FF;
}
</style>
</head>
<body class="style1">
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager2" runat="server" EnablePageMethods="true" />
<div>
<asp:UpdatePanel ID="upMember" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<table cellpadding="1" cellspacing="4" border="0" width="100%">
<tr>
<td>
<Toolkit:TabContainer ID="tcMembers" runat="server" AutoPostBack="true"
ActiveTabIndex="0" onactivetabchanged="tcMembers_ActiveTabChanged">
<Toolkit:TabPanel HeaderText="Pending Challans" ID="tpPendingChallan" runat="server"
Height="200px">
<ContentTemplate>
<asp:GridView ID="gvPendingChallans" runat="server" AutoGenerateColumns="True" CellPadding="4"
Width="100%" OnPageIndexChanging="gvPendingChallans_PageIndexChanging" OnRowCommand="gvPendingChallans_RowCommand"
AllowPaging="True" GridLines="None">
</asp:GridView>
</ContentTemplate>
</Toolkit:TabPanel>
<Toolkit:TabPanel HeaderText="Pending 2" ID="tpPending2" runat="server"
Height="200px">
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="True" CellPadding="4"
Width="100%" OnPageIndexChanging="gvPendingChallans_PageIndexChanging" OnRowCommand="gvPendingChallans_RowCommand"
AllowPaging="True" GridLines="None">
</asp:GridView>
</ContentTemplate>
</Toolkit:TabPanel>
</Toolkit:TabContainer>
</td>
<td width="2%">
</td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
Then in your code behind: 然后在您的代码后面：
protected void Page_Load(object sender, EventArgs e)
{
upMember.Update();
}
private void BindPendingChallans()
{
//var dat = JobCardManager.DisplayChallan();
//gvPendingChallans.DataSource = dat; gvPendingChallans.DataBind();
}
protected void tcMembers_ActiveTabChanged(object sender, EventArgs e)
{
if (tcMembers.ActiveTabIndex == 6)
{
BindPendingChallans();
}
}
protected void gvPendingChallans_PageIndexChanging(object sender, GridViewPageEventArgs e){
}
protected void gvPendingChallans_RowCommand(object sender, GridViewCommandEventArgs e){
}
Note: That in you 'tcMembers_ActiveTabChanged' you had specify tab index 6 The Tab index begins with 0. Maybe you can adjust it depending the number of you Intended tab.... 注意：在您的“ tcMembers_ActiveTabChanged”中，您指定了标签索引6标签索引以0开头。也许您可以根据要使用的标签的数量对其进行调整。...
Regards, 问候，
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