private void barButtonItem4_ItemClick(object sender, ItemClickEventArgs e) { //btnMonHoc frmMonHoc mh = new frmMonHoc(); mh.MdiParent = this; mh.Show(); }
private void btnMonHoc_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e) { Form frm = this.CheckExists(typeof(frmMonHoc)); if (frm != null) { frm.Activate(); } else { frmMonHoc f = new frmMonHoc(); f.MdiParent = this; f.Show(); } }