public override void PrepareForSegue(UIStoryboardSegue segue, NSObject sender)
 {
     if (segue.Identifier == "showDocuments")
     {
         UINavigationController  navigationController   = (UINavigationController)segue.DestinationViewController;
         DocumentsViewController documentViewController = (DocumentsViewController)navigationController.ViewControllers[0];
         documentViewController.ShowDocumentsOffline = true;
     }
 }
 public DocumentTableDataSource(List <Document> documents, DocumentsViewController owner)
 {
     DocumentsItems = documents;
     this.Owner     = owner;
 }