private void AddContractClick(object sender, RoutedEventArgs e)
{
try
{
if ((DateTime)date_Of_BeginingDatePicker.SelectedDate >= (DateTime)date_Of_EndingDatePicker.SelectedDate)
{
throw new Exception("Invalid Date!");
}
bl.Add_Contract(contract);
MessageBox.Show("Add Contract successful");
contract = new BE.Contract();
this.DataContext = contract;
Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}