private void quảnLýĐĩaDVDToolStripMenuItem_Click(object sender, EventArgs e) { QLDia frmQLDia = new QLDia(); foreach (Form frm in MdiChildren) { frm.Close(); } frmQLDia.MdiParent = this; frmQLDia.Show(); }
private void quảnLýĐĩaDVDToolStripMenuItem_Click(object sender, EventArgs e) { QLDia frmQLDia = new QLDia(); hienForm(frmQLDia); }