private void buttonDelete_Click(object sender, EventArgs e)
 {
     InputSanitizer inputSanitizer = new InputSanitizer();
     try
     {
         int id = Convert.ToInt32(inputSanitizer.DigitsOnly(IDTextBox.Text));
         DBActions dbActions = new DBActions();
         string msg = dbActions.DeleteCity(id);
         MessageBox.Show(msg);
     }
     catch(Exception ex)
     {
         MessageBox.Show(Resources.IdIncorrect + ex.Message);
     }
 }