private void mnOrder_Click(object sender, EventArgs e) { MenuSelected((sender as ToolStripMenuItem).Name); if (orderCtr == null || orderCtr.IsDisposed) { orderCtr = new OrderControl(); orderCtr.Dock = DockStyle.Fill; if (!orderCtr.IsDisposed) { pnlMain.Controls.Add(orderCtr); } } orderCtr.BringToFront(); }