private void btnDeactivate_Click(object sender, RoutedEventArgs e)
        {
            UserDTO userDto = ((FrameworkElement)sender).DataContext as UserDTO;

            if (MessageBox.Show("Are you sure you want to deactivate " + userDto.FirstName + " " + userDto.Email + "?",
                                "Are you sure?", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
            {
                var op = Userbll.Deactivate(userDto.UserID);

                if (op.Code != "200")
                {
                    MessageBox.Show("Error : " + op.Message);
                }
                else
                {
                    MessageBox.Show("User is successfully deactivated from table");
                    showData();
                }
            }
            ;
        }