Application.Restart 不传回参数
这是一个 ClickOnce 应用程序。根据文档，“如果您的应用程序最初在首次执行时提供了命令行选项，则重新启动将使用相同的选项再次启动该应用程序。”。但我不知道这是否适用于 ClickOnce 应用程序。如果是这样，我做错了什么？
这是我的代码：
public Form1()
{
InitializeComponent();
textBox1.Text = string.Join(Environment.NewLine, GetCommandLineFile());
}
private static string[] GetCommandLineFile()
{
if (AppDomain.CurrentDomain != null &&
AppDomain.CurrentDomain.SetupInformation != null &&
AppDomain.CurrentDomain.SetupInformation.ActivationArguments != null &&
AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData != null &&
AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData.Any())
{
return AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData;
}
else return new string[] { };
}
private void button1_Click(object sender, EventArgs e)
{
Application.Restart();
}
我将我的应用程序与 .abc 扩展名关联起来，当我双击 .abc 文件时，应用程序将启动，并以文件名作为唯一参数，但是当我重新启动时（通过按 button1），GetCommandLineFile() 将返回一个空数组。
This is a ClickOnce application. According to the documentation, "If your application was originally supplied command-line options when it first executed, Restart will launch the application again with the same options.". But I don't know if this is supposed to work or not with ClickOnce applications. If so, what am I doing wrong?
Here is my code:
public Form1()
{
InitializeComponent();
textBox1.Text = string.Join(Environment.NewLine, GetCommandLineFile());
}
private static string[] GetCommandLineFile()
{
if (AppDomain.CurrentDomain != null &&
AppDomain.CurrentDomain.SetupInformation != null &&
AppDomain.CurrentDomain.SetupInformation.ActivationArguments != null &&
AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData != null &&
AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData.Any())
{
return AppDomain.CurrentDomain.SetupInformation.ActivationArguments.ActivationData;
}
else return new string[] { };
}
private void button1_Click(object sender, EventArgs e)
{
Application.Restart();
}
I associated my application with the .abc extension and when I double click my .abc file, the application will launch with the file name as the only argument, but then when I restart (by pressing my button1), GetCommandLineFile() will return an empty array.
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我相信
Application.Restart是为标准命令行参数而设计的，而不是 ClickOnce 应用程序如何处理它。查看 Microsoft 的
Application.Restart代码，他们明确检查应用程序是否是 ClickOnce 应用程序，然后重新启动它，不传递任何参数。任何其他应用程序都会解析Environment.GetCommandLineArgs() 并将其发送到新进程。我认为更好的解决方案不是将参数写入文件，而是简单地启动一个新进程：
这样，当您的应用程序启动时，
GetCommandLineFile()应该再次获取参数。I believe
Application.Restartwas designed for standard command line arguments instead of how ClickOnce applications handle it.Looking at Microsoft's code for
Application.Restart, they explicitly check if the application is a ClickOnce application and then restart it without any arguments being passed. Any other application, getsEnvironment.GetCommandLineArgs()parsed and sent to a new process.I think a better solution, instead of writing arguments to a file, is to simply start a new process as such :
That way, when your application starts up,
GetCommandLineFile()should grab the arguments again.