C# start app with command-line parameters

Question

I have a small app(C# WPF) that starts automatically with system, but i want that main window of my program will not shown when it starts from autorun(with command-line parameter autorun).

I written this code:

    protected override void OnStartup(StartupEventArgs e)
    {

        if (e.Args.Length == 0) 
            this.Run(new MainWindow());

        base.OnStartup(e);

    }

But it didn't work... So how i can check existence of my autorun parameter from App.xaml.cs and prevent opening MainWindow?

Thanks.

Have you tried to attach a debugger and see why the window opens? — GameScripting
– GameScripting, Commented May 1, 2013 at 5:53
Window opens by dispatcher, and when i try to override event OnStartup i get exception: InvalidOperationException — Roman Nazarkin
– Roman Nazarkin, Commented May 1, 2013 at 6:13

Damith · Accepted Answer · 2013-05-01 06:15:15Z

2

Find StartupUri attribute at the top of your App.xaml file and remove it:

override the OnStartup as below

protected override void OnStartup(StartupEventArgs e)
{
    base.OnStartup(e);

    if (e.Args.Length == 0)
    {
        // no argument 
        // do stuff 
    }
    else
    {
        // with arguments
        // do stuff 
    }
    this.Shutdown();
}

answered May 1, 2013 at 6:15

Damith

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