private void btn_oksoluong_Click(object sender, EventArgs e)
{
txt_soluong.Enabled = false;
btn_oksoluong.Enabled = false;
if (!String.IsNullOrEmpty(txt_soluong.Text))
{
bd.upsoluongmon(ref err
, mahd, dgvdshangdangban.Rows[index].Cells["colmamon"].Value.ToString()
, txt_soluong.Text);
}
//MessageBox.Show(mahd+" "+dgvdshangdangban.Rows[index].Cells["colmamon"].Value.ToString()+" "+txt_soluong.Text);
laydulieuhangdangban(mahd);
}