C#正在验证多个文本框

本文关键字：文本 验证 | 更新日期: 2023-09-27 18:24:39

我在一个页面上有几个文本框。文本框的值是从创建的注册表项中提取的。我有一个更新按钮，用户可以按下它来更新注册表中的值。我需要添加功能，这样，如果他们更改了一个或多个文本框中的值，错误提供程序就会显示在他们更改的文本框旁边。我知道我可以为每一个文本框编写代码，但那会很混乱和漫长。有没有一种方法可以让我使用foreach循环？

private void tabPage1_Enter(object sender, EventArgs e)
    {
        //            Root: HKLM64; Subkey: "Software'Microsoft'Windows NT'CurrentVersion'Winlogon";ValueType: string; ValueName: "AutoAdminLogon"; ValueData: "1";Check: IsWin64
        //          Root: HKLM64; Subkey: "Software'Microsoft'Windows NT'CurrentVersion'Winlogon";ValueType: string; ValueName: "DefaultUserName"; ValueData: "mydealerlot";Check: IsWin64
        //        Root: HKLM64; Subkey: "Software'Microsoft'Windows NT'CurrentVersion'Winlogon";ValueType: string; ValueName: "DefaultPassword"; ValueData: "sdc1234";Check: IsWin64
        //      Root: HKLM64; Subkey: "SOFTWARE'Microsoft'Windows'CurrentVersion'Policies'System";ValueType: dword; ValueName: "EnableLUA"; ValueData: "0";Check: IsWin64
        AutoAdminLogin = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'SOFTWARE'MDL'SystemRestart", "AutoAdminLogon", null);
        DefaultUserName = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'SOFTWARE'MDL'SystemRestart", "DefaultUserName", null);
        DefaultDomain = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'SOFTWARE'MDL'SystemRestart", "DefaultDomain", null);
        DefaultPassword = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'SOFTWARE'MDL'SystemRestart", "DefaultPassword", null);
        SymbolicName = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'SOFTWARE'MDL'RemoteAgent", "SymbolicName", null);
        ServerAPIKey = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'SOFTWARE'MDL'RemoteAgent", "ServerAPIKey", null);

        if (String.IsNullOrEmpty(AutoAdminLogin))
        {
            AutoAdminLogin = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'Software'Microsoft'Windows NT'CurrentVersion'Winlogon", "AutoAdminLogon", null);
        }
        if (String.IsNullOrEmpty(DefaultUserName))
        {
            DefaultUserName = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'Software'Microsoft'Windows NT'CurrentVersion'Winlogon", "DefaultUserName", null);
        }
        if (String.IsNullOrEmpty(DefaultDomain))
        {
            DefaultDomain = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'Software'Microsoft'Windows NT'CurrentVersion'Winlogon", "DefaultDomain", null);
        }
        if (String.IsNullOrEmpty(DefaultPassword))
        {
            DefaultPassword = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'Software'Microsoft'Windows NT'CurrentVersion'Winlogon", "DefaultPassword", null);
        }
        if (String.IsNullOrEmpty(SymbolicName))
        {
            SymbolicName = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'SOFTWARE'MDL'RemoteAgent", "SymbolicName", null);
        }
        if (String.IsNullOrEmpty(ServerAPIKey))
        {
            ServerAPIKey = (string)Registry.GetValue(@"HKEY_LOCAL_MACHINE'SOFTWARE'MDL'RemoteAgent", "ServerAPIKey", null);
        }
        if (String.IsNullOrEmpty(DefaultUserName))
        {
            DefaultUserName = Environment.GetEnvironmentVariable("USERNAME");
        }
        if (String.IsNullOrEmpty(DefaultDomain))
        {
            DefaultDomain = Environment.GetEnvironmentVariable("USERDOMAIN");
        }
        if (AutoAdminLogin == null || AutoAdminLogin != "1")
            AutoAdminLogin = "0";
        tbUserName.Text = DefaultUserName;
        tbDomain.Text = DefaultDomain;
        tbPassword.Text = DefaultPassword;
        tbSymbolicName.Text = SymbolicName;
        tbServerAPIKey.Text = ServerAPIKey;
        cbAutoLogin.Checked = (AutoAdminLogin == "1") ? true : false;
        compareLoginUsername();
        compareLoginPassword();
}

感谢您抽出时间，

-S

C#正在验证多个文本框

您可以将所有盒子连接到同一逻辑

box1.TextChanged += TextchangedHandler();
box2.TextChanged += TextchangedHandler();
box3.TextChanged += TextchangedHandler();

处理程序可以处理如何处理文本框及其数据等

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