c# - 与Active Directory更改密码相关的处理错误问题

Question

我有一个按钮，它的click事件通过各种验证代码运行，如果您通过验证，则调用方法“ChangePassword”。

    public void ChangePassword(string userName, string oldPassword, string newPassword)
    {
        try
        {
            new ApplusActiveDirectoryUtil().CheckParameter(ref userName, true, true, false, 21, "User Name");

            DirectoryEntry userEntry = _directoryInfo.GetUserEntry(userName);
            userEntry.Invoke("ChangePassword", new Object[] { oldPassword, newPassword });
            //unlock account
            userEntry.Properties["LockOutTime"].Value = 0x0000;
            userEntry.CommitChanges();
            userEntry.Dispose();
            userEntry.Close();
        }
        catch (Exception ex)
        {
            _directoryInfo.Initialize();
            DirectoryEntry domainEntry = _directoryInfo.DomainDirectoryEntry;
            ApplusActiveDirectoryDomainPolicy domainPolicy = new ApplusActiveDirectoryDomainPolicy(_directoryInfo.DomainDirectoryEntry);
            string message = "Password entered was wrong or password entered was the same as the previous " + domainPolicy.PasswordHistoryLength + " passwords set.";
            throw new Exception(message, ex);
        }
    }

我遇到的问题是这条线...

userEntry.Invoke("ChangePassword", new Object[] { oldPassword, newPassword });

会给出错误...

System.Runtime.InteropServices.COMException (0x80070056): The specified network password is not correct.

当用户在“当前密码”文本框中输入密码但与当前密码不匹配时，会发生错误。

我试图通过做来解决这个问题。

   if (txtConfirmNewPassword.Text != user.Password)
   {
       SetChangePasswordMessage("Password entered was wrong");
   }

但根据我的阅读，无法检索用户的AD密码。

是否可以优雅地处理此错误而不必捕获它？

Answer 1

感谢Equalsk的评论我找到了解决方案。

我需要首先验证凭据。如果凭据有效，则继续并调用ChangePassword方法。

            bool IsValidate = Membership.ValidateUser(user.UserName, txtOldPassword.Text);
            if (!IsValidate)
            {
                SetChangePasswordMessage("Password entered was wrong or password entered was the same as the previous " + domain.PasswordHistoryLength + " passwords set.");
            }
            else
            {
                new ApplusActiveDirectoryMembership(admin.AdminADUserName, admin.AdminADPassword).ChangePassword(user.UserName, txtOldPassword.Text, txtConfirmNewPassword.Text);
                SetChangePasswordMessage("The password has been successfully changed.");
            }