private void HandleNew(object sender, KeyEventArgs e)
 {
     if (Keyboard.Modifiers == ModifierKeys.Control && e.Key == Key.N)
     {
         var ac = new DoktorKayit();
         ac.ShowDialog();
     }
 }
        private void Button_Click_1(object sender, RoutedEventArgs e)//yenikayıt
        {
            var ac = new DoktorKayit();

            ac.ShowDialog();
        }