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母版页.aspx

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
    <title></title>
    <asp:ContentPlaceHolder ID="head" runat="server">

    </asp:ContentPlaceHolder>
    <script src='http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js'>     
     </script>
     <script src="Chrome.js" type="text/javascript"></script>
     </head>
     <body>
     <form id="Master" runat="server">
      <table style="width:987px; margin:auto; height: 86px;">
       <tr style="background-color:#FFFFFF">
         <td class="style2">
           <img src="images/logo.jpg" alt="" width="235" height="73" />&nbsp;
             </td>
             <td style="vertical-align:middle;"class="style1">
             <div style="float:right; width:153px; height: 22px;">
             &nbsp;<asp:TextBox ID="TextBox1" runat="server" Height="20px" 
                                            style="margin-left: 0px" Width="140px">   
              </asp:TextBox>
              </div>
              <a href="">Forget Password?</a> </span></span>
               </td>
               <td class="style33">
              <div style="float:right; width:157px; height: 20px; margin-right: 1px;">
            <asp:TextBox ID="TextBox2" runat="server" Height="20px"  
                                            style="margin-left: 0px; margin-top:  
                                            Width="147px"></asp:TextBox>
                                        </div>

              <a href="Registration.aspx">New User Registration</a> </span>
                                </td>
                                <td class="style40">
            <div style="height: 67px; width: 81px;">
            &nbsp<asp:Button ID="btnlogin" runat="server" style="color:White;  background-color:#404040;font-family:Verdana;font-size:10pt; height: 29px; margin-top: 12px;" Text="Login" onclick="btnlogin_Click1" /></div>
                                </td>
                            </tr>
                        </table>
                    </td>
                </tr>
                <tr style="background-color:#207DA8">
                    <td class="style39">
                    </td>
                    <td class="style39">
                    </td>
                </tr>



        <script type="text/javascript">

            cssdropdown.startchrome("chromemenu")

          </script>
                    </td>
                </tr>

                                        <img alt="" src="images/rgt.jpg" style="width: 471px; height: 247px" />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                                    </td>
                                </tr>
                                <tr style="vertical-align=top;background-color=#D4D3D9">
                                    <td style="height:1;">
                                    </td>
                                </tr>
                            </tbody>
                        </table>
                         </tbody>
                         </table>
       <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
    </asp:ContentPlaceHolder>
   </form>  
  </body>
  </html>

注册页面.aspx

  <%@ Page Language="C#" MasterPageFile="~/MasterPage.Master" AutoEventWireup="true" CodeBehind="Registration.aspx.cs" ValidateRequest="false" Inherits="Paragraphreader.Registration" %>
  <asp:Content ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
   <script src="jquery.validate.js" type="text/javascript"></script>
   <script src="jquery.validation.js" type="text/javascript"></script>
    <script>
    $("#Register").submit(function () {
        return $(this).validation();
        alert("submitted");
    });

 </script>
 <script>
     function validate() {

         var a = 0, rdbtn = document.getElementsByName("gender");
         for (i = 0; i < rdbtn.length; i++) {
             if (rdbtn.item(i).checked == false) {
                 a++;
             }
         }

         if (a == rdbtn.length) {
             document.getElementById("RadioButtonList1").style.border = "2px solid red";
             return false;
         } else {
             document.getElementById("RadioButtonList1").style.border = "";
             return true;
         }

     }

 </script>

   <link href="Career.css" rel="stylesheet" type="text/css" />
   <link href="Chrome.css" rel="stylesheet" type="text/css" />
   <link href="Styles.css" rel="stylesheet" type="text/css" />
  <form id="Register" runat="server">//A page can have only one form tag
  <asp:ScriptManager ID="ScriptManager1" runat="server">
  </asp:ScriptManager>
  <asp:UpdatePanel ID="FormUpdatePanel" runat="server">
   <ContentTemplate>

我收到错误（在编译 RegisterPage.aspx 时，一个页面只能有一个服务器端 cof。在母版页中我有一个表单标签和服务器端代码在注册页面中我有一个表单标签和服务器端代码。如何避免这个错误

4

1 回答 1

6

母版页通常不应包含form标签，因为它们仅用作内容页的基本布局。从母版页中删除form标签，错误就会消失。

如果您想为所有页面定义一个通用的“登录”部分（这似乎是您的意图），您可以改为创建一个UserControl来执行此操作。然后，您将在母版页内定义一个部分以包含此用户控件，确保 Login UserControl 的 ContentPlaceHolder 始终包含在内容页的form. 这样，当您提交表单时，btnlogin_Click1就会触发 click 事件。

总之：重新排列您的页面，使每页有一个form标签，因为 ASP.NET 不允许有多个标签，并尝试在内容页面而不是母版页中定义您的表单。

于 2013-03-18T15:20:55.043 回答