private void bntHuyLop_Click(object sender, RoutedEventArgs e)
{
try
{
index = dataGridDanhSachMonHoc.SelectedIndex;
Lop obj = dataGridDanhSachLop.SelectedItem as Lop;
LopDAO dao = new LopDAO();
if (dao.Remove(obj.MaLop))
{
MessageBox.Show("Đã xóa", "Thông báo", MessageBoxButton.OK, MessageBoxImage.Information);
Reload();
dataGridDanhSachMonHoc.SelectedIndex = index;
}
//if (obj != null)
//{
// foreach (var lop in obj)
// {
// index = dataGridDanhSachMonHoc.SelectedIndex;
// Lop mlop = db.Lop.Find((lop as Lop).MaLop);
// List<ThamGia> listThamGia = db.ThamGia.Where(x => x.MaLop == mlop.MaLop).ToList();
// foreach (var tg in listThamGia)
// {
// ThamGia mtg = tg as ThamGia;
// if (String.IsNullOrEmpty(mtg.MaLop) == false)
// {
// db.ThamGia.Remove(db.ThamGia.Find(mtg.MaLop,mtg.MaSinhVien));
// db.SaveChanges();
// }
// }
// db.Lop.Remove(mlop);
// db.SaveChanges();
// }
// MessageBox.Show("Đã xóa","Thông báo",MessageBoxButton.OK,MessageBoxImage.Information);
// Reload();
// dataGridDanhSachMonHoc.SelectedIndex = index;
//}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}