private void btAdd_Click(object sender, EventArgs e)
{
hangHoaBUS.Insert(new EL.HangHoa(tbMaHang.Text, tbTenHang.Text, tbNoiChua.Text, double.Parse(tbGiaHang.Text), int.Parse(tbSLHang.Text)));
GetAllToGridView();
}
private void btAdd_Click(object sender, EventArgs e)
{
hangHoaBUS.Insert(new EL.HangHoa(tbMaHang.Text, tbTenHang.Text, tbNoiChua.Text, double.Parse(tbGiaHang.Text), int.Parse(tbSLHang.Text)));
GetAllToGridView();
}