如何检测设置文件的属性值是否已更改？

Question

我试过做一个简单的用户授权。 安装后，Settings1 文件中名为“UserHasBeenVerified”的属性已更改。 我已将 Settings Changed 事件处理程序添加到 App.cs 文件，但我仍然没有不知道原因。 我希望属性在安装后为 FALSE。但不知何故它确实是真的。

你觉得我该如何解决这个问题？谢谢。

我创建了一个安装程序 Class 以在安装后重置 Settings1：

 [RunInstaller(true)]
public partial class InstallerClass : System.Configuration.Install.Installer
{
    public InstallerClass()
    {
        InitializeComponent();
    }

    protected override void OnAfterInstall(IDictionary savedState)
    {
        // This function runs when the installation is finished.

        base.OnAfterInstall(savedState);

        try
        {
            System.Windows.MessageBox.Show($"01\nVERIFIED STATE: {BackendLayer.Settings1.Default.UserHasBeenVerified}"); // Shows: VERIFIED STATE: False
            BackendLayer.Settings1.Default.Reset();
            System.Windows.MessageBox.Show($"02\nVERIFIED STATE: {BackendLayer.Settings1.Default.UserHasBeenVerified}"); // Shows: VERIFIED STATE: False
            BackendLayer.Settings1.Default.Save();
            System.Windows.MessageBox.Show($"03\nVERIFIED STATE: {BackendLayer.Settings1.Default.UserHasBeenVerified}"); // Shows: VERIFIED STATE: False
            System.Windows.MessageBox.Show("Installed");
        }
        catch 
        {
            System.Windows.MessageBox.Show("NOT Installed");
        }
    }


}

App.cs 文件是：

App() 
{
// Runs first whenever the program is opened
    BackendLayer.Settings1.Default.SettingChanging += Default_SettingChanging;
    MessageBox.Show($"VERIFIED STATE: {BackendLayer.Settings1.Default.UserHasBeenVerified}"); // Shows: VERIFIED STATE: TRUE

}
private void Default_SettingChanging(object sender, System.Configuration.SettingChangingEventArgs e)
{
// Fires when any property in setting1 is changed.
   MessageBox.Show($"Setting Name: {e.SettingName}\nSetting Key: {e.SettingKey}\nSetting Class: {e.SettingClass}\nNew value: {e.NewValue}");
}

调用App()构造函数的函数：

/// <summary>
    /// Application Entry Point.
    /// </summary>
    [System.STAThreadAttribute()]
    [System.Diagnostics.DebuggerNonUserCodeAttribute()]
    [System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "4.0.0.0")]
    public static void Main() {
        ScheduleProgram.App app = new ScheduleProgram.App();
        app.InitializeComponent();
        app.Run();
    }

Settings1.Designer.cs 中的 UserHasBeenVerified 代码：

 [global::System.Configuration.UserScopedSettingAttribute()]
    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
    [global::System.Configuration.DefaultSettingValueAttribute("False")]
    public bool UserHasBeenVerified {
        get {
            return ((bool)(this["UserHasBeenVerified"]));
        }
        set {
            this["UserHasBeenVerified"] = value;
        }
    }

程序按顺序安装后的输出：

01\nVERIFIED 状态：错误
02\nVERIFIED 状态：错误
03\nVERIFIED 状态：错误
已安装

程序打开后的输出：

已验证状态：正确

我尝试过的东西：

我已经更改了 Settings1 文件的这些属性：

*Build Action: From "None" to "Content"* ,

*Copy to Output Directory: From "Do not copy" to "Copy always"*

Answer 1

我不认为 BackendLayer.Settings1.Default 在安装程序中调用它时从文件中获取值，您是从 Settings1 class 实例化的实例中获取值默认构造函数。

确认 UserHasBeenVerified 的值在您的 Settings1.settings 文件中是正确的，并且在您构建应用程序时将其复制到您的 app.config。由于您只需要默认值，您的安装程序只需要打包构建应用程序的输出

如何检测设置文件的属性值是否已更改？

How to detect a property value of the setting file is changed?

c#

wpf

installation

如何检测设置文件的 属性 值是否已更改？

How to detect a property value of the setting file is changed?

c#

wpf

installation

如何检测设置文件的属性值是否已更改？