CODEWITHSUNDEEP
c#winforms
Ivan-Mark Debono
Ivan-Mark Debono

Reputation: 16330

WinForms app not closing completely

This is my Program class:

static class Program
{
    private class MyAppContext : ApplicationContext
    {
        public MyAppContext()
        {
            //Exit delegate
            Application.ApplicationExit += new EventHandler(this.OnApplicationExit);

            //Show the main form
            MainForm main = new MainForm();
            main.Show();
        }

        private void OnApplicationExit(object sender, EventArgs e)
        {
            //Cleanup code...
        }
    }

    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new MyAppContext());
    }
}

When I'm running the app in debug mode and I close it, the main form closes, but the app is still running and I have to click on Stop Debugging to terminate it completely.

In the main form, all I do is:

protected override void OnFormClosed(FormClosedEventArgs e)
{
    base.OnFormClosed(e);
    Application.Exit();
}

What am I doing wrong?

Upvotes: 1

Views: 218

Answers (3)

Jeremy Thompson
Jeremy Thompson

Reputation: 65692

The problem is inheriting the AppContext, not sure why you need that. Suggest you do it normally without AppContext and cleanup in the MainForm_Closing, OnFormClosed, App_Exit or similar event.

public class Program
{
    [STAThread]
    private static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        //Application.Run(new MyAppContext()); <- no need
        Application.Run(new MainForm());
    }
}

Upvotes: 2

Orkun Bekar
Orkun Bekar

Reputation: 1441

Try that:

protected override void OnFormClosed(FormClosedEventArgs e)
{
    base.OnFormClosed(e);
    Environment.Exit(0);
}

Upvotes: 0

Andrei Tătar
Andrei Tătar

Reputation: 8295

EDIT:

This works fine for me. So it must be something else wrong. Post more code.

public class Program
{
    private class MyAppContext : ApplicationContext
    {
        public MyAppContext()
            : base(new Form())
        {
            //Exit delegate
            Application.ApplicationExit += new EventHandler(this.OnApplicationExit);

            MainForm.Show();
        }

        private void OnApplicationExit(object sender, EventArgs e)
        {
            //Cleanup code...
        }
    }

    [STAThread]
    private static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new MyAppContext());
    }
}

Upvotes: 0

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