private void ThemNhomHang(object sender, EventArgs e)
{
frmThemNhomHang tnh = new frmThemNhomHang();
tnh.ShowDialog();
LoadData();
}
private void SuaNhomHang(object sender, EventArgs e)
{
NhomHang nh = new NhomHang()
{
Ma = grv_rootnhomhang.GetRowCellValue(grv_rootnhomhang.FocusedRowHandle, "Mã").ToString(),
Ten = grv_rootnhomhang.GetRowCellValue(grv_rootnhomhang.FocusedRowHandle, "Tên").ToString()
};
frmThemNhomHang tnh = new frmThemNhomHang(nh);
tnh.ShowDialog();
LoadData();
}