private void Button_del_Click(object sender, RoutedEventArgs e) { if (flag == null) { if (Number1 != null) { if (Number1.Length > 0) { Number1 = Number1.Remove(Number1.Length - 1); } label1.Content = Number1; } } else { if (Number2 != null) { if (Number2.Length > 0) { Number2 = Number2.Remove(Number2.Length - 1); } label1.Content = Number2; } } }
private void Button_DEL_Click(object sender, RoutedEventArgs e) { if (flag == Operator.none) { if (Number1.Length > 0) { Number1 = Number1.Remove(Number1.Length - 1); label1.Content = Number1; } } else { if (Number2.Length > 0) { Number2 = Number2.Remove(Number2.Length - 1); label1.Content = Number2; } } }