如何以编程方式更新始终运行并使用 msix 部署的 WinForms 应用程序？

Posted 2023-03-25

【中文标题】如何以编程方式更新始终运行并使用 msix 部署的 WinForms 应用程序？

【英文标题】：How do I update programatically a WinForms app which is always running, deployed with msix?

【发布时间】：2021-05-14 16:22:55

【问题描述】：

我有一个配置为在启动时运行的应用程序。它没有用户界面，它会在用户登录时进入系统托盘并整天做它的事情。

应用程序应该会自动更新，无需用户通知，我不想打扰用户。如何使用 msix 做到这一点？

我在使用 AppInstaller 自动更新时遇到了问题，因为该应用程序一直在运行，而且它有很多问题。这段代码在某种程度上起作用。它关闭应用程序，进行更新，但更新后不启动应用程序。我需要应用程序在更新后立即运行，无需用户干预。我该怎么做？

                var result = await Package.Current.CheckUpdateAvailabilityAsync();
            switch (result.Availability)
            
                case PackageUpdateAvailability.Available:
                case PackageUpdateAvailability.Required:
                    PackageManager packagemanager = new PackageManager();
                    await packagemanager.UpdatePackageAsync(new Uri("path-to-file.msix"), null, DeploymentOptions.ForceApplicationShutdown);
                    break;
                case PackageUpdateAvailability.NoUpdates:
                    // Close AppInstaller.
                    MessageBox.Show("Non-updates");
                    break;
                case PackageUpdateAvailability.Unknown:
                default:
                    MessageBox.Show($"No update information associated with app");
                    break;
            

【问题讨论】：

这能回答你的问题吗？ Update application silently while running

不，我使用的是 msix。

那为什么你的问题包含winforms标签？如果建议的副本没有解决您的问题，那么您的问题似乎不是 about winforms，因此不应包含该标签。

@JohnG 我认为这可行，但在 msix 的上下文中，我必须部署两个包，一个用于“包装器”，另一个包用于应用程序，否则安装将失败。我正在探索的另一个选择是在 Windows 任务计划程序中添加一个任务，以便在更新后几分钟重新启动应用程序，但这太 hacky。我希望 msix 支持更简洁的解决方案。

【参考方案1】：

解决方案在此页面中： https://docs.microsoft.com/en-us/windows/msix/non-store-developer-updates#automatically-restarting-your-app-after-an-update

在开始更新之前调用 RegisterApplicationRestart()。

       private async Task UpdatePackage()
    
        try
        
            // Register the active instance of an application for restart in your Update method
            uint res = RelaunchHelper.RegisterApplicationRestart(null, RelaunchHelper.RestartFlags.NONE);

            PackageManager packagemanager = new PackageManager();
            await packagemanager.UpdatePackageAsync(new Uri($"path-to.msix"), null, DeploymentOptions.ForceApplicationShutdown);
        
        catch (Exception ex)
        
            MessageBox.Show("Error in update: " + ex.ToString());
        
    




    class RelaunchHelper

    #region Restart Manager Methods
    /// <summary>
    /// Registers the active instance of an application for restart.
    /// </summary>
    /// <param name="pwzCommandLine">
    /// A pointer to a Unicode string that specifies the command-line arguments for the application when it is restarted.
    /// The maximum size of the command line that you can specify is RESTART_MAX_CMD_LINE characters. Do not include the name of the executable
    /// in the command line; this function adds it for you.
    /// If this parameter is NULL or an empty string, the previously registered command line is removed. If the argument contains spaces,
    /// use quotes around the argument.
    /// </param>
    /// <param name="dwFlags">One of the options specified in RestartFlags</param>
    /// <returns>
    /// This function returns S_OK on success or one of the following error codes:
    /// E_FAIL for internal error.
    /// E_INVALIDARG if rhe specified command line is too long.
    /// </returns>
    [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
    internal static extern uint RegisterApplicationRestart(string pwzCommandLine, RestartFlags dwFlags);
    #endregion Restart Manager Methods

    #region Restart Manager Enums
    /// <summary>
    /// Flags for the RegisterApplicationRestart function
    /// </summary>
    [Flags]
    internal enum RestartFlags
    
        /// <summary>None of the options below.</summary>
        NONE = 0,

        /// <summary>Do not restart the process if it terminates due to an unhandled exception.</summary>
        RESTART_NO_CRASH = 1,
        /// <summary>Do not restart the process if it terminates due to the application not responding.</summary>
        RESTART_NO_HANG = 2,
        /// <summary>Do not restart the process if it terminates due to the installation of an update.</summary>
        RESTART_NO_PATCH = 4,
        /// <summary>Do not restart the process if the computer is restarted as the result of an update.</summary>
        RESTART_NO_REBOOT = 8
    
    #endregion Restart Manager Enums