private void update_btn__Click(object sender, RoutedEventArgs e)
{
try
{
lecturer = CreateLecturerEntity();
_lecturerViewModel.UpdateLecturerData(lecturer);
lecturer_data_grid.ItemsSource = _lecturerViewModel.LoadLecturerData();
ClearAll();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}