private void tsbtnNhomHangHoa_Click(object sender, EventArgs e)
{
if (!IsShow("frmNhomHangHoa"))
{
frmNhomHangHoa nhomhanghoa = new frmNhomHangHoa();
nhomhanghoa.StartPosition = FormStartPosition.CenterScreen;
nhomhanghoa.MdiParent = this;
nhomhanghoa.Show();
}
else
{
foreach (Form frmNhomHangHoa in this.MdiChildren)
{
if (frmNhomHangHoa.Name == "frmNhomHangHoa")
{
frmNhomHangHoa.Activate();
break;
}
}
}
}
private void mnuQuanLyHangHoa_Click(object sender, EventArgs e)
{
frmNhomHangHoa nhomhanghoa = new frmNhomHangHoa();
nhomhanghoa.ShowDialog();
}