Question

I’m developing a C# application and when the user clicks on the X, the application gets minimized inside a trayicon. Like so:

private void frmChat_FormClosing(object sender, FormClosingEventArgs e)
{
    e.Cancel = true;
    Hide();
}

The application is really simple (only one form). The problem is that I can’t manage to properly close the application. When the user rights clicks on the tray icon and he chooses “exit” he should be able to close the application. The problem is that even if the tray icon gets unloaded and the form is closed, the application still shows in the Task Manager as an active application. I’m closing the application like this:

private void chiudiToolStripMenuItem_Click(object sender, EventArgs e)
{
    trayIcon.Dispose();
    this.Close();
    Application.Exit();
}

What am I missing here?

Answer 1

I did something similar a while back.

You need to know what is causing the form to close. So when you click on the X, there is a specific reason passed to the FormClosing event. Like so:

private void MyForm_FormClosing(object sender, FormClosingEventArgs e)
{
    // don't close just yet if we click on x
    if (e.CloseReason == CloseReason.UserClosing)
    {
        e.Cancel = true;
        this.Hide();
    }
}

Also, I have other code from the context menu Exit click:

private void tsmiExit_Click(object sender, EventArgs e)
{
    // close the application forefully
    TerminateApplication();
}

/// <summary>
/// Closes the Application.
/// </summary>
private void TerminateApplication()
{
    // need to forcefully dispose of notification icon
    this.notifyIcon1.Dispose();

    // and exit the application
    Application.Exit();
}

Edit:

Note: When you click on the X button, the close reason will be a CloseReason.UserClosing. When Application.Exit is called, the FormClosing is called again with a CloseReason.ApplicationExitCall.

End Edit:

Hope this helps

Andez