protected OperationState saveFile(NavigationToken token) { Controllable page = searchInOpenedPages(token.currentActiveFunctionality); if (page != null) { if (page.Save() == OperationState.CONTINUE) { page.IsModify = false; page.ToolBar.SaveButton.IsEnabled = false; } return(OperationState.CONTINUE); } return(OperationState.CONTINUE); }