wpf how to open a new window code example

Example 1: open new window c# wpf

private void Button_Click(object sender, RoutedEventArgs e)
{
    window2 win2 = new window2();
    win2.Show();
}

Example 2: how to make a button open window in wpf

private void Button_Click(object sender, RoutedEventArgs e)
{
    window2 win2 = new window2();
    win2.Show();
    this.Close();
}