ClearCanvas.Desktop.View.WinForms.DesktopWindowView.TabbedGroupPageChangedEventHandler C# (CSharp) Method

        private void TabbedGroupPageChangedEventHandler(TabbedGroups tg, Crownwood.DotNetMagic.Controls.TabPage tp)
        {
            // de-activate the previous workspace before activating the new one
            var lastActive = _workspaceActivationOrder.LastElement;
            if (lastActive != null)
            {
                lastActive.SetActiveStatus(false);
            }

            // important to check tp != null to account for the case where the last workspace closes
            var nowActive = (tp != null) ? (WorkspaceView)tp.Tag : null;
            if (nowActive != null)
            {
                nowActive.SetVisibleStatus(true);   // the very first time the page is selected, need to change its visible status
                nowActive.SetActiveStatus(true);
                _workspaceActivationOrder.Add(nowActive);
            }
        }