Question

Masterpage.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>

RegisterPage.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（编译RegisterPage.aspx时页面只能有一个服务器端cof。在主页面中我有一个表单标签和服务器端代码在Register页面中，我有一个表单标签和服务器端代码。以避免此错误

Answer 1

母版页通常不应包含form标记，因为它们仅用作内容页面的基本布局。从主页面中删除form标记，错误将消失。

如果您想为所有网页定义一个通用的“登录”部分（这似乎是您的意图），您可以创建一个UserControl来执行此操作。然后，您将在主页面中定义一个部分以包含此用户控件，以确保Login UserControl的ContentPlaceHolder始终最终包含在内容页面的form内。这样，当您提交表单时，会触发btnlogin_Click1点击事件。

总之：以每页有一个form标记的方式重新排列页面，因为ASP.NET不允许有多个并尝试在内容页面中定义表单而不是主页。

一个页面只能有一个服务器端的Form标签。

1 个答案: