//Quản lý private void btnQLGV_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { Form frm = kiemtraform(typeof(QLGiaoVien)); if (frm == null) { QLGiaoVien forms = new QLGiaoVien(); forms.MdiParent = this; forms.Show(); } else { frm.Activate(); } }
private void menuQLGV_Click(object sender, EventArgs e) { QLGiaoVien frm = new QLGiaoVien(); frm.Show(); }