Ejemplo n.º 1
0
        private void btnDangnhap_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            Form f = this.CheckExists(typeof(frmDangNhap));

            if (f != null)
            {
                f.Activate();
            }
            else
            {
                f           = new frmDangNhap();
                f.MdiParent = this;
                f.Show();
            }
        }