防止用戶在createUserWizard上點擊兩次

Question

偶爾，我會以某種方式獲取在asp.net web應用程序中註冊兩次的用戶。註冊使用createUserwizard，用戶和電子郵件被設置爲唯一的，所以我沒有線索，並沒有運氣在另一篇文章中得到答案，所以我已經轉移到另一種方式來解決這個問題。我認爲它可能是從用戶點擊兩次「註冊」按鈕靠近在一起。我一直在嘗試很多解決方案，要麼在點擊之後禁用按鈕（這是字段驗證的難點），要麼彈出一個不說「創建用戶」，或者甚至只是將按鈕文本更改爲「創建」，就像這樣solution --with no luck (Rory's)，我沒有得到這個錯誤，但沒有按鈕的變化發生了。這是我的嚮導（拿出EUA，CHK箱通提示）

<WizardSteps> 
    <asp:CreateUserWizardStep runat="server" ID="RegisterUserWizardStep" > 
     <ContentTemplate> 
      <p class="message-info">Passwords are required to be a minimum of <%: Membership.MinRequiredPasswordLength %> characters in length.</p> 
      <p class="validation-summary-errors"> 
       <asp:Literal runat="server" ID="ErrorMessage" /> 
      </p> 
      <fieldset> 
       <legend>Registration Form</legend> 
       <ol> 
        <li> 
         <asp:Label runat="server" AssociatedControlID="UserName">User name</asp:Label> 
         <asp:TextBox runat="server" ID="UserName" /> 
         <asp:RequiredFieldValidator runat="server" ControlToValidate="UserName" 
          CssClass="field-validation-error" ErrorMessage="The user name field is required." /> 
         <asp:RegularExpressionValidator runat="server" ControlToValidate="UserName" 
          CssClass="field-validation-error" ErrorMessage="No spaces or special characters" ValidationExpression="^[a-zA-Z0-9]+$" /> 
        </li> 
        <li> 
         <asp:Label runat="server" AssociatedControlID="Email">Email address</asp:Label> 
         <asp:TextBox runat="server" ID="Email" TextMode="Email" /> 
         <asp:RequiredFieldValidator runat="server" ControlToValidate="Email" 
          CssClass="field-validation-error" ErrorMessage="The email address field is required." /> 
        </li> 
        <li> 
         <asp:Label runat="server" AssociatedControlID="Password">Password</asp:Label> 
         <asp:TextBox runat="server" ID="Password" TextMode="Password" /> 
         <asp:RequiredFieldValidator runat="server" ControlToValidate="Password" 
          CssClass="field-validation-error" ErrorMessage="The password field is required." /> 
        </li> 
        <li> 
         <asp:Label runat="server" AssociatedControlID="ConfirmPassword">Confirm password</asp:Label> 
         <asp:TextBox runat="server" ID="ConfirmPassword" TextMode="Password" /> 
         <asp:RequiredFieldValidator runat="server" ControlToValidate="ConfirmPassword" 
          CssClass="field-validation-error" Display="Dynamic" ErrorMessage="The confirm password field is required." /> 
         <asp:CompareValidator runat="server" ControlToCompare="Password" ControlToValidate="ConfirmPassword" 
          CssClass="field-validation-error" Display="Dynamic" ErrorMessage="The password and confirmation password do not match." /> 
        </li> 
       </ol> 
       <asp:Button ID="registerBtn" runat="server" CommandName="MoveNext" Text="Register" " /> 
      </fieldset> 
     </ContentTemplate> 
     <CustomNavigationTemplate /> 
    </asp:CreateUserWizardStep> 
</WizardSteps> 

任何防止這種X2點擊將大大appreciated-幫助 - 它繼續違反我時，我得到了「[用戶]鍵已經存在」錯誤使用ASP控制檯工具的能力。

Answer 1

您可以禁用按鈕，它被點擊一次後？

Public Class _Default 
    Inherits Page 
    Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click 
     Button1.Enabled = False 
     MsgBox("Next time you click, the button is disabled, and you don't get this message.") 
    End Sub 
End Class