private void simpleButton9_Click(object sender, EventArgs e)
{
Form frm = ktraform(typeof(Frm_KhachHang));
if (frm == null)
{
Frm_KhachHang f = new Frm_KhachHang();
f.Show();
}
else
{
frm.Activate();
}
}
private void btn_DSKH_ItemClick(object sender, ItemClickEventArgs e)
{
Form frm = ktraform(typeof(Frm_KhachHang));
if (frm == null)
{
Frm_KhachHang f = new Frm_KhachHang();
f.MdiParent = this;
f.Show();
}
else
{
frm.Activate();
}
}