怪事多呀！form里面用上table，表单就跑到别的contentPlaceHoulder上去了

怪事多呀！form里面用上table，表单就跑到别的contentPlaceHoulder上去了刚用母板页， 真是不解啊
本来是想吧一个form放在一个叫CPHMain的contentPlaceHoulder上，
原本挺好的。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="SendPost.aspx.cs" Inherits="SendPost"
    MasterPageFile="~/MasterPage.master" Title="Content Page 1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="CPHMain" runat="Server">
    yfaoui
    <form id="form1" runat="server">
        <asp:TextBox ID="TextBox_Title" runat="server"></asp:TextBox>
        <asp:TextBox ID="TextBox_Content" runat="server" Rows="8" TextMode="MultiLine"></asp:TextBox>
        <asp:Button ID="Button_AddPost" runat="server" Text="添加" Width="85px" OnClick="Button_AddPost_Click" /></td>
        <asp:RadioButton ID="RadioButton1" runat="server" GroupName="categoryID" value="1"
            Text="网络资源" />
        <asp:RadioButton ID="RadioButton2" runat="server" GroupName="categoryID" value="2"
            Text="Java语言" />
        <asp:RadioButton ID="RadioButton3" runat="server" GroupName="categoryID" value="3"
            Text="C#" />
    </form>
</asp:Content>
但是我加上表格为了摆正位置，整个表单就跑到CPHFooter的contentPlaceHoulder上去了
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="SendPost.aspx.cs" Inherits="SendPost"
    MasterPageFile="~/MasterPage.master" Title="Content Page 1" %><asp:Content ID="Content1" ContentPlaceHolderID="CPHMain" runat="Server">
yfaoui
   <form id="form1" runat="server">
        <table>
            <tr>
                <td>
                    title
                </td>
                <td>
                    <asp:TextBox ID="TextBox_Title" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    Content
                </td>
                <td>
                    <asp:TextBox ID="TextBox_Content" runat="server" Rows="8" TextMode="MultiLine"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Button ID="Button_AddPost" runat="server" Text="添加" Width="85px" OnClick="Button_AddPost_Click" /></td>
            </tr>
            <tr>
            <td>
            <asp:RadioButton ID="RadioButton1" runat="server"  GroupName="categoryID" value="1" Text="网络资源"/>
            <asp:RadioButton ID="RadioButton2" runat="server"  GroupName="categoryID" value="2" Text="Java语言"/>
            <asp:RadioButton ID="RadioButton3" runat="server"  GroupName="categoryID" value="3" Text="C#"/>
            </td>
            </tr>
        </table>
        </form>
    
</asp:Content>================================
接下来是我的母板页，会不会是这里有问题？<%@ 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 runat="server">
    <title>无标题页</title>
    <style type="text/css">
    #Header{background-color:lightBlue;}
    #Left{background-color:lightPink;float:left;}
    #Main{background-color:yellow;display:block;}
    #Footer{background-color:lightblue;display:block;}
    </style>
</head>
<body>
    <div id="Header">
        <asp:Panel ID="Panel_Header" runat="server" Width="500" Height="150">
            <asp:Label ID="Label_Date" runat="server" Text="Label"></asp:Label>
            <asp:Panel ID="Panel_Navi" runat="server" Height="150px" Width="300px">
                <asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl="">HyperLink</asp:HyperLink>
                <asp:HyperLink ID="HyperLink3" runat="server" NavigateUrl="">HyperLink</asp:HyperLink>
                <asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl="">HyperLink</asp:HyperLink>
            </asp:Panel>
        </asp:Panel>
        <asp:ContentPlaceHolder ID="CPHHeader" runat="server">
        </asp:ContentPlaceHolder>
    </div>
    <div id="Left">
        <asp:Panel ID="Panel_Left" runat="server" Height="450px" Width="150px">
            <asp:HyperLink ID="HyperLink4" runat="server" NavigateUrl="">HyperLink</asp:HyperLink>
            <asp:HyperLink ID="HyperLink5" runat="server" NavigateUrl="">HyperLink</asp:HyperLink>
            <asp:HyperLink ID="HyperLink6" runat="server" NavigateUrl="">HyperLink</asp:HyperLink>
        </asp:Panel>
        <asp:ContentPlaceHolder ID="CPHLeft" runat="server">
        </asp:ContentPlaceHolder>
    </div>
    <div id="Main">
        <asp:Panel ID="Panel_Main" runat="server" Height="450px" Width="350px">
            <asp:ContentPlaceHolder ID="CPHMain" runat="server">
            </asp:ContentPlaceHolder>
        </asp:Panel>
    </div>
    <div id="Footer">
        <asp:Panel ID="Panel_Footer" runat="server" Height="100px" Width="500px">
        </asp:Panel>
        <asp:ContentPlaceHolder ID="CPHFooter" runat="server">
        </asp:ContentPlaceHolder>
    </div>
</body>
</html>

解决方案 »

  1.   

    没有人知道吗？应该是很初级的问题啊。
    上个页面实在对不齐就算了。
    现在我又有一个页面，只是加了一个gridView， 问题又来了！！<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true"
        CodeFile="CheckAllPosts.aspx.cs" Inherits="CheckAllPosts" Title="Untitled Page" %>
    <asp:Content ID="Content3" ContentPlaceHolderID="CPHMain" runat="Server">
        <form id="form1" runat="server">
        <asp:GridView ID="GridView_CheckAllPosts" runat="server" AutoGenerateColumns="False" DataKeyNames="InfoID" DataSourceID="SqlDataSource_CheckAllPosts">
            <Columns>
                <asp:BoundField DataField="InfoID" HeaderText="InfoID" InsertVisible="False" ReadOnly="True"
                    SortExpression="InfoID" />
                <asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" />
                <asp:BoundField DataField="PostUser" HeaderText="PostUser" SortExpression="PostUser" />
                <asp:BoundField DataField="PostTime" HeaderText="PostTime" SortExpression="PostTime" />
                <asp:BoundField DataField="LastReplyTime" HeaderText="LastReplyTime" SortExpression="LastReplyTime" />
                <asp:BoundField DataField="ReplyCount" HeaderText="ReplyCount" SortExpression="ReplyCount" />
                <asp:BoundField DataField="CategoryName" HeaderText="CategoryName" SortExpression="CategoryName" />
            </Columns>
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource_CheckAllPosts" runat="server" ConnectionString="Data Source=WWW-92CFB5C4666\SQLEXPRESS;Initial Catalog=BBSDB;Persist Security Info=True;User ID=sa;Password=sa"
            ProviderName="System.Data.SqlClient" SelectCommand="SELECT BBSInfo.InfoID, BBSInfo.Title, BBSInfo.PostUser, BBSInfo.PostTime, BBSInfo.LastReplyTime, BBSInfo.ReplyCount, BBSCategory.CategoryName FROM BBSInfo INNER JOIN BBSCategory ON BBSInfo.CategoryID = BBSCategory.CategoryID">
        </asp:SqlDataSource>
        </form>
    </asp:Content>
    它仍然是出现在蓝色的区块中（Footer）而不是黄颜色的部分中（也就是Main DIV）
    大家帮帮忙啊！
      

  2.   

    最后我只好用上表格才好。。
    但是要求是只用DIV CSS布局的。结贴好了