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我無法訪問我的代碼隱藏中的任何我的asp控件。在.aspx頁面如下無法在代碼隱藏中訪問asp.net changepassword控件
<%@ Page Title="" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="ChangePassword.aspx.cs" Inherits="ChangePassword" ValidateRequest="false" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:ChangePassword ID="ChangePassword1" runat="server" CssClass="MinutesList"
onchangedpassword="ChangePassword1_ChangedPassword">
<ChangePasswordTemplate>
<table cellpadding="1" cellspacing="0" style="border-collapse:collapse;">
<tr>
<td>
<table cellpadding="0">
<tr>
<td align="center" colspan="2">
Change Your Password</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="CurrentPasswordLabel" runat="server"
AssociatedControlID="CurrentPassword">Password:</asp:Label>
</td>
<td>
<asp:TextBox ID="CurrentPassword" runat="server" TextMode="Password" Visible="false" >></asp:TextBox>
<asp:RequiredFieldValidator ID="CurrentPasswordRequired" runat="server"
ControlToValidate="CurrentPassword" ErrorMessage="Password is required."
ToolTip="Password is required." ValidationGroup="ChangePassword1">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="NewPasswordLabel" runat="server"
AssociatedControlID="NewPassword">New Password:</asp:Label>
</td>
<td>
<asp:TextBox ID="NewPassword" runat="server" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="NewPasswordRequired" runat="server"
ControlToValidate="NewPassword" ErrorMessage="New Password is required."
ToolTip="New Password is required." ValidationGroup="ChangePassword1">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="ConfirmNewPasswordLabel" runat="server"
AssociatedControlID="ConfirmNewPassword">Confirm New Password:</asp:Label>
</td>
<td>
<asp:TextBox ID="ConfirmNewPassword" runat="server" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="ConfirmNewPasswordRequired" runat="server"
ControlToValidate="ConfirmNewPassword"
ErrorMessage="Confirm New Password is required."
ToolTip="Confirm New Password is required." ValidationGroup="ChangePassword1">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="center" colspan="2">
<asp:CompareValidator ID="NewPasswordCompare" runat="server"
ControlToCompare="NewPassword" ControlToValidate="ConfirmNewPassword"
Display="Dynamic"
ErrorMessage="The Confirm New Password must match the New Password entry."
ValidationGroup="ChangePassword1"></asp:CompareValidator>
</td>
</tr>
<tr>
<td align="center" colspan="2" style="color:Red;">
<asp:Literal ID="FailureText" runat="server" EnableViewState="False"></asp:Literal>
</td>
</tr>
<tr>
<td align="right">
<asp:Button ID="ChangePasswordPushButton" runat="server"
CommandName="ChangePassword" Text="Change Password"
ValidationGroup="ChangePassword1" />
</td>
<td>
<asp:Button ID="CancelPushButton" runat="server" CausesValidation="False"
CommandName="Cancel" Text="Cancel" />
</td>
</tr>
</table>
</td>
</tr>
</table>
</ChangePasswordTemplate>
<SuccessTemplate>
<table cellpadding="1" cellspacing="0" style="border-collapse:collapse;">
<tr>
<td>
<table cellpadding="0">
<tr>
<td align="center" colspan="2">
Change Password Complete</td>
</tr>
<tr>
<td>
Your password has been changed!</td>
</tr>
<tr>
<td>
<asp:Button ID="HomePageButton" runat="server" Text="Continue" CausesValidation="true"
onclick="HomePageButton_Click" />
</td>
</tr>
</table>
</td>
</tr>
</table>
</SuccessTemplate>
</asp:ChangePassword>
</asp:Content>
代碼隱藏是
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class ChangePassword : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//TextBox password = (TextBox)ChangePassword1.FindControl("CurrentPassword");
//Label passwordLabel = (Label)ChangePassword1.FindControl("CurrentPasswordLabel");
TextBox password = ChangePassword1.FindControl("CurrentPassword") as TextBox;
Label passwordLabel = ChangePassword1.FindControl("CurrentPasswordLabel") as Label;
//TextBox CurrentPassword = ChangePassword1.FindControl("CurrentPassword") as TextBox;
if (Request.QueryString["p"] != null)
{
passwordLabel.Visible = false;
password.TextMode = TextBoxMode.SingleLine;
password.Visible = false;
password.Text = Request.QueryString["p"];
}
}
protected void ChangePassword1_ChangedPassword(object sender, EventArgs e)
{
}
protected void HomePageButton_Click(object sender, EventArgs e)
{
//Link.ToHomePage();
Response.Redirect("HomePage.aspx");
}
}
我有是我得到的不是設置爲on passwordLabel和密碼的對象實例的對象引用的問題。有誰知道如何將它們納入範圍，以便我可以在代碼隱藏中編輯文本和可見性屬性？
感謝@Adil馬馬多夫，它的工作完美。你能解釋一下爲什麼這種方法有效，而其他方法卻不行？ – tuckerjt07 2012-07-11 15:50:24
我很高興它的工作。我認爲這是由於您必須在ChangePassword1中更改模板：ChangePasswordTemplate和SuccessTemplate。由於您的TextBox和Label位於第一個模板中，因此您必須編寫Controls [0]。如果他們在SuccessTempate中，它將是Controls [1]。可能是我錯了，請嘗試在SuccessTemplate中獲得「HomePageButton」並編寫控件[1]。如果它的作品，這意味着我沒有錯:) – 2012-07-12 05:06:27