// xóa
public void Delete(EC_DSHD et)
{
sql.Delete(et);
}
// sửa
public void Update(EC_DSHD et)
{
cn.ExecuteSql(@"UPDATE DSHD SET MaKH = N'" + et.MaKH + "', MaMH = N'" + et.MaMH + "' , SoLuongMua = N'" + et.SoLuongMua + "', MaNV = N'" + et.MaNV + "' WHERE MaHD = N'" + et.MaHD + "' ");
}
// sửa
public void Update(EC_DSHD et)
{
sql.Update(et);
}
public void Delete(EC_DSHD et)
{
cn.ExecuteSql(@"DELETE FROM DSHD WHERE MaHD = N'" + et.MaHD + "'");
}