private void OnDocumentClosed(object sender, DocumentClosedEventArgs e)
{
IPrismDemoService service = Container.Resolve <IPrismDemoService>();
service.SetDocumentTitle(null);
}
private void OnDocumentOpened(object sender, DocumentOpenedEventArgs e)
{
IPrismDemoService service = Container.Resolve <IPrismDemoService>();
service.SetDocumentTitle(e.Document.Title);
}