private bool DeleteStudent(string pesel)
{
try {
StudentOperations.DeleteStudentWithPesel(pesel);
return(true);
}
catch (Exception) {
return(false);
}
}
private void BTNDelete_Click(object sender, RoutedEventArgs e)
{
if (TXTBPesel.Text.Length < 11)
{
MessageBox.Show("Podaj poprawny PESEL!", "Libary System", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
try {
StudentOperations.DeleteStudentWithPesel(TXTBPesel.Text);
MessageBox.Show("Uczen zostal poprawnie usuniety!", "Libary System", MessageBoxButton.OK,
MessageBoxImage.Information);
TXTBPesel.Text = string.Empty;
}
catch (NullReferenceException exception) {
MessageBox.Show(exception.Message, "Libary System", MessageBoxButton.OK, MessageBoxImage.Error);
}
catch (Exception exception) {
MessageBox.Show(exception.Message, "Libary System", MessageBoxButton.OK, MessageBoxImage.Error);
throw new Exception();
}
}
