Problem using form runat=server with master pages?

I have a master page with two ContentPlaceHolders.

我有一个包含两个ContentPlaceHolders的母版页。

I have a default page.aspx which uses this master page.

我有一个使用此母版页的默认page.aspx。

In the default page one ContentHolder has a TreeView and the other has a GridView.

在默认页面中,一个ContentHolder具有TreeView,另一个具有GridView。

Now i need to display both of them together and both require <form runat="server">.

现在我需要将它们显示在一起,并且都需要

But the issue is that i cant have two instances of <form runat="server"> in a single page.

但问题是我不能在一个页面中有两个

I tried putting <form runat="server"> on the master page but then the TreeViewand GridView functionality stops working.....

我尝试在主页面上放置

Please help me as to what can i do to solve this.

请帮助我,我该怎么做才能解决这个问题。

Page File:

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="GridViewPg1.aspx.cs" Inherits="GridViewPg1" %>

<%@ Register assembly="obout_Grid_NET" namespace="Obout.Grid" tagprefix="cc1" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
   <form id="form1" runat="server">   
   <asp:Panel ID="Panel1" runat="server" ScrollBars="Vertical">

   <a style="color: #000000; font-weight: bold;">SumooHServer</a>
       <p>&nbsp;<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
           ConnectionString="<%$ ConnectionStrings:SumooHAgentDBConnectionString %>" 
           SelectCommand="SELECT DISTINCT [MachineGroupName], [MachineGroupID] FROM [MachineGroups]">
       </asp:SqlDataSource>
       <asp:SqlDataSource ID="SqlDataSource2" runat="server" 
           ConnectionString="<%$ ConnectionStrings:SumooHAgentDBConnectionString %>" 
           SelectCommand="SELECT DISTINCT [PolicyID], [PolicyName] FROM [Policies]">
       </asp:SqlDataSource>
       <asp:TreeView ID="TreeView2" runat="server" 
           ontreenodepopulate="TreeView2_TreeNodePopulate">
           <Nodes>
               <asp:TreeNode NavigateUrl="~/GridViewPg1.aspx" PopulateOnDemand="True" 
                   Text="Machine Group" Value="Machine Group"></asp:TreeNode>
           </Nodes>
       </asp:TreeView>
       <asp:TreeView ID="TreeView3" runat="server" 
           ontreenodepopulate="TreeView3_TreeNodePopulate">
           <Nodes>
               <asp:TreeNode PopulateOnDemand="True" Text="Policies" Value="Policies">
               </asp:TreeNode>
           </Nodes>
       </asp:TreeView>
       </p></asp:Panel>
</form>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder2" Runat="Server">

<asp:Panel ID="Panel2" runat="server" ScrollBars="None" Width="100%">
    <cc1:Grid ID="Grid1" runat="server" AllowFiltering="True" 
    AllowGrouping="True" DataSourceID="SqlDataSource3">
    </cc1:Grid>
    <asp:SqlDataSource ID="SqlDataSource3" runat="server" 
    ConnectionString="<%$ ConnectionStrings:SumooHAgentDBConnectionString %>" 
    SelectCommand="SELECT * FROM [MachineGroups]"></asp:SqlDataSource>
</asp:Panel>

</asp:Content>

Masterpage file:

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>

<!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>
<title>SumooH</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
</head>

<body>

  <div id="wrapper">
    <div id="header" 
          style="border-bottom-style: solid; border-bottom-color: #0000FF; border-bottom-width: medium">
    </div>

     <div id="left-content" 
          style="border-right: thin ridge #000000; top: 104px;">

          <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

        </asp:ContentPlaceHolder>
    </div>
    <div id="content-wrapper">
      <div id="content-inner">


        <asp:ContentPlaceHolder id="ContentPlaceHolder2" runat="server">

        </asp:ContentPlaceHolder>


      </div>
   <div id="footer">
        <p>&nbsp;</p> 
   </div>
     </div>


   </div>



</body>
</html>

2 个解决方案

#1

You say that the TreeView and GridView functionality "stops working" when the <form runat="server"> is in the master page -- but if doing two forms (one in the master, one in the page using the master) doesn't work, then technically it's not working either way.

你说当

The correct idiom for ASP.NET 2.0+ using master pages is to place the form tag in the master page. The pages using the master, if wired up correctly, will not need form tags -- they will get the tag from their master. The web app I just deployed this morning worked that way. :)

使用母版页的ASP.NET 2.0+的正确习惯是将表单标记放在母版页中。如果正确连接,使用主页的页面将不需要表单标签 - 它们将从主服务器获取标签。我今天早上刚刚部署的网络应用就是这样做的。 :)

I'm guessing that there's actually a code issue buried in the page itself causing the TreeView and GridView to not function once the form tags are implemented correctly.

我猜测页面本身实际上存在一个代码问题,导致TreeView和GridView在表单标签正确实现后无法运行。

EDIT

To be clear, the master page must have <form runat="server">, all of the other controls & HTML needed, the placeholders, and a closing </form> tag.

为了清楚起见,母版页必须具有

The pages using the master cannot have any <form runat="server"> tags at all, and especially not a closing </form> tag.

使用master的页面根本不能有任何

Done this way, there should be no problems.

这样做,应该没有问题。

#2

Your master page should contain the form element, with the closing element at the bottom of it.

您的母版页应包含表单元素,其底部是结束元素。

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>

<!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>
<title>SumooH</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>
<form id="form1" runat="server">
    <div>
        <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server" />
    </div>
    <div>
        <asp:ContentPlaceHolder id="ContentPlaceHolder2" runat="server" />
    </div>
</form>
</body>

Your content pages should not contain any form elements for your purposes.

您的内容页面不应包含任何表单元素。

#1

你说当