private void ButtonAddNewYear_Click(object sender, EventArgs e)
{
try
{
// Get the topmost year in the listbox
RentYear lastYear = (RentYear)ListBoxCurrentYear.Items[0];
// Pass it to helper function and get the next higher year
string npYear = lastYear.TheRentYear.ToString();
RentYearDA rentYearDA = new RentYearDA();
RentYear newRentYear = new RentYear();
newRentYear.TheRentYear = Helper.GetNextYear(npYear);
rentYearDA.SaveRentYear(newRentYear);
}
catch (Exception)
{
MessageForm messageForm = new MessageForm();
messageForm.MessageText = "प्राविधिक कारणले गर्दा नयाँ वर्ष थप गर्न सकिएन।";
messageForm.ShowDialog();
}
PopulateRentYears();
}
private void PopulateRentYears()
{
RentYearDA rentYearDA = new RentYearDA();
ComboBoxRentYear.DataSource = rentYearDA.GetAllRentYears();
ComboBoxRentYear.DisplayMember = "TheRentYear";
ComboBoxRentYear.ValueMember = "YearID";
}
private void ButtonDeleteYear_Click(object sender, EventArgs e)
{
MessageForm messageForm = new MessageForm();
// We won't let the user delete all the years;
// there must be at least one year in the list
if (ListBoxCurrentYear.Items.Count > 1)
{
// Get the topmost year in the listbox
RentYear selectedYear = (RentYear)ListBoxCurrentYear.Items[ListBoxCurrentYear.SelectedIndex];
// Pass it to helper function and get the next higher year
string npYear = selectedYear.TheRentYear.ToString();
RentYearDA rentYearDA = new RentYearDA();
if (rentYearDA.DoesRentYearHaveLeasePayment(selectedYear))
{
messageForm.MessageText = "उक्त वर्षमा ठेक्का तिरेको रेकर्ड भएको कारणले गर्दा मेटाउन सकिएन।";
messageForm.ShowDialog();
}
else
{
bool success = rentYearDA.DeleteRentYear(selectedYear);
if (!success)
{
messageForm.MessageText = "प्राविधिक कारणले गर्दा मेटाउन सकिएन।";
messageForm.ShowDialog();
}
}
PopulateRentYears();
}
else
{
messageForm.MessageText = "माफ गर्नुहोला, सूचीबाट सबै वर्ष मेटाउन सकिंदैन।";
messageForm.ShowDialog();
}
}