ASP.NET登錄控件屬性不起作用

Question

我創建了一個用戶控件，其中包含一個asp：login控件。 我無法設置諸如LoginUser.LoginButtonText之類的屬性。 當我通過調試器運行網站時，將執行該行，並且不會引發任何錯誤。 我可以將鼠標懸停在調試器中的LoginButtonText上，並將該值設置為新值。 但是，控件完成加載后，將使用原始文本呈現文本。

(From WebUserControl1.cs)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace test
{
    public partial class WebUserControl1 : System.Web.UI.UserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {
         LoginUser.LoginButtonText = "Test Button";
        }
    }
}



(From WebUserControl1.ascx)

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="WebUserControl1.ascx.cs" Inherits="test.WebUserControl1" %>
    <asp:Login ID="LoginUser" runat="server" EnableViewState="false" 
        RenderOuterTable="false" onauthenticate="LoginUser_Authenticate">
        <LayoutTemplate>
            <span class="failureNotification">
                <asp:Label ID="FailureText" runat="server"></asp:Label>
            </span>
            <asp:ValidationSummary ID="LoginUserValidationSummary" runat="server" CssClass="failureNotification" 
                 ValidationGroup="LoginUserValidationGroup"/>
            <div class="accountInfo">
                <fieldset class="login">
                    <p>
                        <asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">Username:</asp:Label>
                        <asp:TextBox ID="UserName" runat="server" CssClass="textEntry"></asp:TextBox>
                        <asp:RequiredFieldValidator ID="UserNameRequired" runat="server" ControlToValidate="UserName" 
                             CssClass="failureNotification" ErrorMessage="User Name is required." ToolTip="User Name is required." 
                             ValidationGroup="LoginUserValidationGroup">*</asp:RequiredFieldValidator>
                    </p>
                    <p>
                        <asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">Password:</asp:Label>
                        <asp:TextBox ID="Password" runat="server" CssClass="passwordEntry" TextMode="Password"></asp:TextBox>
                        <asp:RequiredFieldValidator ID="PasswordRequired" runat="server" ControlToValidate="Password" 
                             CssClass="failureNotification" ErrorMessage="Password is required." ToolTip="Password is required." 
                             ValidationGroup="LoginUserValidationGroup">*</asp:RequiredFieldValidator>
                    </p>
                    <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>
                <p class="submitButton">
                    <asp:Button ID="LoginButton" runat="server" CommandName="Login" Text="Log In" ValidationGroup="LoginUserValidationGroup"/>
                </p>
            </div>
        </LayoutTemplate>
    </asp:Login>

Answer 1

您必須使用Login控件的FindControl方法首先獲取對登錄按鈕的引用，然后將其設置為Text屬性，這是可以做到的：

Button btnLogin = (Button)LoginUser.FindControl("LoginButton");
btnLogin.Text = "Test Button";