＆name;＆＃39; panelName＆＃39;的DefaultButton必须是IButtonControl类型的控件的ID

Question

我正在开发一个关于ASP.NET的网站，并使用bootstrap进行设计。我使用模态淡入淡出类（如弹出窗口）供用户登录。

这是我的代码：

<div class="modal fade" id="login" role="dialog">
   <asp:Panel ID="AZloginPanel" runat="server">
      <div class="modal-dialog">
         <div class="modal-content">
            <div class="form-horizontal">
               <div class="modal-header">
                  <h4>Login</h4>
               </div>
            <div class="modal-body">
               <asp:Login ID="LoginUser" runat="server" EnableViewState="false" RenderOuterTable="false">
                  <LayoutTemplate>
                     <span class="failureNotification">
                        <asp:Literal ID="FailureText" runat="server"></asp:Literal>
                     </span>
                     <asp:ValidationSummary ID="LoginUserValidationSummary" runat="server" CssClass="failureNotification"
                                        ValidationGroup="LoginUserValidationGroup" />
                     <div class="accountInfo">
                        <fieldset class="login">
                           <div class="form-group">
                              <asp:Label ID="UserNameLabel" CssClass="col-lg-2 control-label" runat="server" AssociatedControlID="UserName">Username:</asp:Label>
                                <div class="col-lg-10">
                                   <asp:TextBox ID="UserName" runat="server" CssClass="form-control" placeholder="Username"></asp:TextBox>
                                </div>
                                <asp:RequiredFieldValidator ID="UserNameRequired" runat="server" ControlToValidate="UserName"
                                                    CssClass="failureNotification" ErrorMessage="User Name is required." ToolTip="User Name is required."
                                                    ValidationGroup="LoginUserValidationGroup">*</asp:RequiredFieldValidator>
                           </div>
                           <div class="form-group">
                              <asp:Label ID="PasswordLabel" CssClass="col-lg-2 control-label" runat="server" AssociatedControlID="Password">Password:</asp:Label>
                              <div class="col-lg-10">
                                 <asp:TextBox ID="Password" runat="server" CssClass="form-control" placeholder="Password" TextMode="Password"></asp:TextBox>
                              </div>
                              <asp:RequiredFieldValidator ID="PasswordRequired" runat="server" ControlToValidate="Password"
                                                    CssClass="failureNotification" ErrorMessage="Password is required." ToolTip="Password is required."
                                                    ValidationGroup="LoginUserValidationGroup">*</asp:RequiredFieldValidator>
                           </div>
                           <p>
                              <asp:CheckBox ID="RememberMe" runat="server" />
                              <asp:Label ID="RememberMeLabel" runat="server" AssociatedControlID="RememberMe" CssClass="inline">Keep me logged in</asp:Label>
                           </p>
                        </fieldset>
                        <div class="modal-footer">
                           <p class="pull-left">
                                <asp:HyperLink ID="RegisterHyperLink" runat="server" EnableViewState="false" NavigateUrl="~/Account/Register.aspx">Register</asp:HyperLink>if you don't have an account.
                           </p>
                              <asp:Button ID="CloseModal" runat="server" CssClass="btn btn-info" CommandName="Close" Text="Close" />
                              <asp:Button ID="LoginButton" runat="server" CssClass="btn btn-primary" CommandName="Login" Text="Log In" ValidationGroup="LoginUserValidationGroup" />
                         </div>
                     </div>
                  </LayoutTemplate>
               </asp:Login>
            </div>
         </div>
      </div>
   </div>
</asp:Panel>
</div>

当我在DefaultButton="LoginButton"面板中设置AZloginPanel时，出现以下错误：

  

＆＃39; AZloginPanel＆＃39;的DefaultButton必须是IButtonControl类型的控件的ID。

我迷失了，我已经尝试了一切，但似乎我已经走到了尽头。

有什么想法吗？

Answer 1

问题是asp:login控件会修改其子级的ID，因此asp:panel控件不知道在哪里查找新{{1} id。

这是一个复制问题的简化版本：

DefaultButton

如果您想使用DefaultButton for a LoginControl，可以执行以下两项操作之一：

1。将面板嵌套在登录控件中：

<asp:Panel ID="AZloginPanel" runat="server" DefaultButton="LoginButton">
    <asp:Login ID="LoginUser" runat="server" >
        <LayoutTemplate>
            <asp:TextBox ID="UserName" runat="server" />
            <asp:TextBox ID="Password" runat="server" TextMode="Password" />
            <asp:Button ID="LoginButton" runat="server" Text="Log In" />
        </LayoutTemplate>
    </asp:Login>
</asp:Panel>

2。使用LoginControlID然后<asp:Login ID="LoginUser" runat="server" > <LayoutTemplate> <asp:Panel runat="server" DefaultButton="LoginButton"> <asp:TextBox ID="UserName" runat="server" /> <asp:TextBox ID="Password" runat="server" TextMode="Password" /> <asp:Button ID="LoginButton" runat="server" Text="Log In" /> </asp:Panel> </LayoutTemplate> </asp:Login> 然后按钮ID：

构建ID

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