VAGSuite.frmMain.tabdet_onClose C# (CSharp) Метод

        void tabdet_onClose(object sender, EventArgs e)
        {
            // close the corresponding dockpanel
            if (sender is MapViewerEx)
            {
                MapViewerEx tabdet = (MapViewerEx)sender;
                string dockpanelname = "Symbol: " + tabdet.Map_name + " [" + Path.GetFileName(tabdet.Filename) + "]";
                string dockpanelname3 = "Symbol difference: " + tabdet.Map_name + " [" + Path.GetFileName(tabdet.Filename) + "]";
                foreach (DevExpress.XtraBars.Docking.DockPanel dp in dockManager1.Panels)
                {
                    if (dp.Text == dockpanelname)
                    {
                        dockManager1.RemovePanel(dp);
                        break;
                    }
                    else if (dp.Text == dockpanelname3)
                    {
                        dockManager1.RemovePanel(dp);
                        break;
                    }
                }
            }
        }