private void VitriKhuon(object sender, EventArgs e)
{
KhuonMau.maSP = txtMaSanPham.Text;
if (KhuonMau == null || KhuonMau.IsDisposed)
{
KhuonMau = new KhuonMau();
}
KhuonMau.Show();
}
private void btnVTKhuon_Click(object sender, EventArgs e)
{
KhuonMau.maSP = txtMasp.Text;
if (KhuonMau == null || KhuonMau.IsDisposed)
{
KhuonMau = new KhuonMau();
}
KhuonMau.Show();
}