Process does not close in task manager

Question

I have the following code snippet to close my winform application:

private void frmAgent_FormClosing(object sender, FormClosingEventArgs e){          
        if (MessageBox.Show("Deseja realmente fechar o sistema?", "Atenção!",    MessageBoxButtons.YesNo, MessageBoxIcon.Warning)
            != DialogResult.Yes)
        {
            e.Cancel = true;
        }
    }

The application closes, but unfortunately the process is still running in the task manager. What can I do to kill the process by closing the application ?

Answer 1

You could call the method Environement.Exit(0) that directly terminates the process of your current thread (your application in this case), for example:

private void frmAgent_FormClosing(object sender, FormClosingEventArgs e)
{          
    if (MessageBox.Show("Deseja realmente fechar o sistema?", "Atenção!", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) != DialogResult.Yes)
    {
        e.Cancel = true;
        return;
    }

    Environement.Exit(0);
}

There is also the possibility to call the method Application.Exit(), that closes all threads of your application and later the process. You can test it too. I recommend reading of this link.