/// <summary> /// Determines whether the specified view model type is registered. /// </summary> /// <param name="uiVisualizerService">The UI visualizer service.</param> /// <param name="viewModelType">Type of the view model.</param> /// <returns><c>true</c> if the specified view model type is registered; otherwise, <c>false</c>.</returns> /// <exception cref="ArgumentNullException">The <paramref name="viewModelType" /> is <c>null</c>.</exception> public static bool IsRegistered(this IUIVisualizerService uiVisualizerService, Type viewModelType) { Argument.IsNotNull("viewModelType", viewModelType); return(uiVisualizerService.IsRegistered(viewModelType.FullName)); }