Question

类型“Button”的控件“ctl00_ContentPlaceHolder1_Button1”必须放在具有 runat=server 的窗体标记内。

类型“Button”的控件“ctl00_ContentPlaceHolder1_Button1”必须放在具有 runat=server 的窗体标记内。怎么回事？  <%@ Page Language="C#" MasterPageFile="~/MasterPage2.master" AutoEventWireup="true" CodeFile="imageschakan.aspx.cs" Inherits="_Default" Title="贾曲镇政府" %><asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">    <asp:DataList ID="DataList1" runat="server" RepeatColumns="3" Width="100%">             <ItemTemplate>                 <table>                     <tr>                         <td style="width: 100px">                             <a href="maxImages.aspx?id=<%# Eval("id") %>"><asp:Label ID="Label1" runat="server" Text='<%# Eval("miaoshu") %>' Width="167px"></asp:Label></a> </td>                             </tr>                            <tr>                        <td style="width: 100px">                            <a href="maxImages.aspx?id=<%# Eval("id") %>"> <asp:Image ID="Image1" runat="server" ImageUrl='<%# Eval("image","~/UpImages/{0}") %>' Width="164px" /></a> </td>                     </tr>                 </table>             </ItemTemplate> </asp:DataList><asp:Button ID="Button1" runat="server" Text="首页" OnClick="Button1_Click" />    <asp:Button ID="Button2" runat="server" Text="上一页" OnClick="Button2_Click" />    <asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="下一页" />    <asp:Button ID="Button4" runat="server" Text="末页" OnClick="Button4_Click" /></asp:Content>

Answer 1

button按钮是在你建的母版页中，出现问题原因可能是你的母版页外面没有form表单，或者form表单没有 runat="server"属性标签，加上再试试看

Answer 2

缺少
<form id="form1" runat="server">

</form>

页面上要加上它 把你的控件包起来

Answer 3

你那个button控件有没有 runat=server?或者from表单有没有？肯定是漏了

Answer 4

看了下 只觉得 runat="Server"可疑。

Answer 5

额