How to close window?

Question

I have a UserControl userControl1 with button. When user click button i create new UserControl and show it:

private void Button_UserControl1_Click(object sender, RoutedEventArgs e)
{                                           
    Window window = new Window
    {
        Title = "Control2",
        Content = _control2

    };
    _control2= new UserControl2(ref window);
    window.ShowDialog();
}

at UserControl2 when i desides to close myself (control2 window) (another button click):

private void btOk_Click(object sender, RoutedEventArgs e)
{          
    _parent.Close();  //_parent is ref window
}

But i can not close it!

Can you tell me: how to close created window ( control2 ) by clicking to button on control2 ?

Thank you!

Answer 1

This should close the parent window:

private void btOk_Click(object sender, RoutedEventArgs e)
{          
    Window.GetWindow(this).Close();
}

This way you don't need to have reference to the parent. GetWindow will always return the window that is hosting the UserControl.