//adds new booking to the list
private void BtnAddBooking_Click(object sender, RoutedEventArgs e)
{
try
{
//generate booking reference number auto if the text box is empty(Always empty because is readonly)
if (String.IsNullOrEmpty(TxtBookingRefNum.Text))
{
MessageBox.Show("Booking Reference Number auto generated!");
//get access to datalayer to use singleton pattern
bookingReference = DataSingleton.getBookingReference();
TxtBookingRefNum.Text = bookingReference.ToString();
}
//checks if the the form is filled up
else if (String.IsNullOrEmpty(TxtArrivalDate.Text) ||
String.IsNullOrEmpty(TxtDepartureDate.Text) ||
String.IsNullOrEmpty(TxtBookingChaletID.Text))
{
throw new ArgumentException("Error empty fields. Please fill them up to proceed!");
}
else if (Int32.Parse(TxtBookingChaletID.Text) < 1 || Int32.Parse(TxtBookingChaletID.Text) > 10)
{
MessageBox.Show("ChaletID should be in range of 1-10");
}
else if (DateTime.Parse(TxtArrivalDate.Text) > DateTime.Parse(TxtDepartureDate.Text))
{
MessageBox.Show("Departure date cannot be before your arrival date");
}
else if (ComboBoxCustomerRef.SelectedItem == null)
{
MessageBox.Show("Please select your customer reference number to proceed!");
}
else
{
try
{
DateTime arrivalDate = DateTime.Parse(TxtArrivalDate.Text);
DateTime departureDate = DateTime.Parse(TxtDepartureDate.Text);
int chaletID = Int32.Parse(TxtBookingChaletID.Text);
//calculate how many days is the booking made for
TimeSpan span = departureDate.Subtract(arrivalDate);
//assigns the total number of days for current booking to variable _totalDays
_totalDays = span.Days;
MessageBox.Show("Number of days" + span.Days);
//store new booking
BusinessObjects.Booking newBooking = new BusinessObjects.Booking(chaletID, bookingReference, arrivalDate, departureDate);//arguments
Bookings.Add(newBooking);
//add the booking reference number to the drop down menu for guests
ComboBoxBookingRef.Items.Add(newBooking.BookingRefNumber);
//empty text boxes
TxtBookingChaletID.Text = String.Empty;
TxtArrivalDate.Text = String.Empty;
TxtDepartureDate.Text = String.Empty;
TxtBookingRefNum.Text = String.Empty;
//clears the selection from the combobox-drop down menu
ComboBoxCustomerRef.SelectedIndex = -1;
}
catch (ArgumentException)
{
MessageBox.Show("Errors within the form! Booking was not added!");
}
}
}
catch (ArgumentException)
{
MessageBox.Show("Empty fields withing Booking section.\nFill Booking section to proceed.");
}
}