ClickOnce 的“应用程序标识未设置”

Question

我在这个问题上摸不着头脑，并花了很长时间研究它。我基于这个问题查看的每个问题看起来都与调试有关（我也有这个调试问题）。然而，这并不是这背后的原因。

In my application I gave the user the option to create a shortcut so that the application will run automatically in startup (I found this a much easier approach than editing the registry).

string copyPath = Environment.GetFolderPath(Environment.SpecialFolder.Startup) + "\\";
using (StreamWriter writer = new StreamWriter(copyPath + "\\" + "ZApp.url"))
{
    string app = System.Reflection.Assembly.GetExecutingAssembly().Location;
    writer.WriteLine("[InternetShortcut]");
    writer.WriteLine("URL=file:///" + app);
    writer.WriteLine("IconIndex=0");
    string icon = app.Replace('\\', '/');
    writer.WriteLine("IconFile=" + icon);
    writer.Flush();
}

This code works great. However, whenever the application checks for an update in the background, it throws the Application identity is not set error.

This is the code that I use for checking for an update:

ApplicationDeployment deploy = ApplicationDeployment.CurrentDeployment; //<- Error thrown here
UpdateCheckInfo update = deploy.CheckForDetailedUpdate();

Again, it works great if I start the application using the icon that ClickOnce places on my desktop, however not great if I use the shortcut icon that my code creates in the startup folder. Is there a way for me to programmatically get round this?

Answer 1

部署状态是错误的原因。正如rudolf_franek已经解释的那样，该应用程序不是网络部署的。在访问之前应用检查CurrentDeployment将使您的应用程序更安全：

if (ApplicationDeployment.IsNetworkDeployed)
{
    // accessing the CurrentDeployment won't throw an exception
    var deploy = ApplicationDeployment.CurrentDeployment;
}

但是要解决导致ApplicationDeployment.IsNetworkDeployed错误的问题，您应该查看此MSDN 论坛帖子。 tl; dr：创建引用*.exe文件的快捷方式将使应用程序作为独立运行。

解决方案：
您应该创建一个适当的快捷方式，在其中引用应用程序部署清单（又名*.application文件）。这应该可以解决问题。