protected void DeleteRental_Click(object sender, EventArgs e)
{
int rentalid = 0;
if (string.IsNullOrEmpty(RentalID.Text))
{
errormsgs.Add("Search for a rental to Remove");
}
else if (!int.TryParse(RentalID.Text, out rentalid))
{
errormsgs.Add("Rental id is invalid");
}
else if (rentalid < 1)
{
errormsgs.Add("Rental id is invalid");
}
if (errormsgs.Count > 0)
{
LoadMessageDisplay(errormsgs, "alert alert-danger");
}
else
{
try
{
RentalsController sysmgr = new RentalsController();
//issue the BLL call
int rowsaffected = sysmgr.Rentals_Delete(rentalid);
//give feedback
if (rowsaffected > 0)
{
errormsgs.Add("Rental has been removed.");
LoadMessageDisplay(errormsgs, "alert alert-success");
BindRentalsList(); //by default, list will be at index 0
Clear_Click(sender, e);
}
else
{
errormsgs.Add("Rental has not been removed. Rental was not found.");
LoadMessageDisplay(errormsgs, "alert alert-danger");
BindRentalsList();
Clear_Click(sender, e);
}
}
catch (DbUpdateException ex)
{
UpdateException updateException = (UpdateException)ex.InnerException;
if (updateException.InnerException != null)
{
errormsgs.Add(updateException.InnerException.Message.ToString());
}
else
{
errormsgs.Add(updateException.Message);
}
LoadMessageDisplay(errormsgs, "alert alert-danger");
}
catch (DbEntityValidationException ex)
{
foreach (var entityValidationErrors in ex.EntityValidationErrors)
{
foreach (var validationError in entityValidationErrors.ValidationErrors)
{
errormsgs.Add(validationError.ErrorMessage);
}
}
LoadMessageDisplay(errormsgs, "alert alert-danger");
}
catch (Exception ex)
{
errormsgs.Add(GetInnerException(ex).ToString());
LoadMessageDisplay(errormsgs, "alert alert-danger");
}
}
}