protected void UpdateGenerateSystemLetters() { int bookingCountToGenerateSystemLetters = BookingDB.GetBookingCountToGenerateSystemLetters(DateTime.MinValue, DateTime.MinValue, GetFormID()); lblBookingsYetToGenerateSystemLetters.Text = bookingCountToGenerateSystemLetters.ToString(); btnGenerateSystemLetters.Visible = bookingCountToGenerateSystemLetters > 0; }