Command-Line Arguments in a WPF Application

We can supply command-line arguments to our WPF application and access them in the Application's Startup event handler.

The following example shows an Application class that has a Startup event handler. We can access the command-line arguments using the StartupEventArgs.Args property, which is an array of strings.

public partial class App : Application
{
    private void App_Startup(object sender, StartupEventArgs e)
    {
         var mainWindow = new MainWindow(e.Args[0]);
        mainWindow.Show();
    }
}