Command line arguments in C# application

In your App.xaml.cs

class App : Application
{
    //Add this method override
    protected override void OnStartup(StartupEventArgs e)
    {
        //e.Args is the string[] of command line arguments
    }
}

It has been mentioned by linquize above, but I think it is worth an answer of its own, as it is so simple...

You can just use:

string[] args = Environment.GetCommandLineArgs();

That works anywhere in the application, not just in App.xaml.cs