Stetic.SteticMain.OnPageChanged C# (CSharp) Method

        static void OnPageChanged(object s, EventArgs a)
        {
            if (WidgetNotebook != null) {
                DesignerView view = WidgetNotebook.CurrentPageWidget as DesignerView;
                if (view != null) {
                    ProjectView.Selection = view.ProjectItem;
                    SteticApp.ActiveDesigner = view.Designer;
                }
            }

            if (CurrentDesignerChanged != null)
                CurrentDesignerChanged (null, a);
        }