public override void Start()
{
BuildFolderExplorers();
// Subscribe to page changed event before starting component, so that when component start the event will fire
// for the initial page that open
_stackTabComponent.CurrentPageChanged += OnCurrentPageChanged;
_stackTabComponentContainerHost = new ChildComponentHost(this.Host, _stackTabComponent);
_stackTabComponentContainerHost.StartComponent();
// register folder system instances with document manager
foreach (var folderSystem in _folderSystems)
{
DocumentManager.RegisterFolderSystem(folderSystem);
}
// create tools
_toolSet = new ToolSet(new FolderExplorerGroupToolExtensionPoint(), new FolderExplorerGroupToolContext(this));
base.Start();
}