ArcGISPortalViewer.ViewModel.AppViewModel.ExecuteAddToFavoritesCommand C# (CSharp) Method

        private void ExecuteAddToFavoritesCommand()
        {
            // send a message to other FavoritesViewModel who is registered with AddItemToFavoritesMessage
            Messenger.Default.Send(new AddItemToFavoritesMessage { Item = SelectedPortalItem });
            RaisePropertyChanged(() => IsSelectedItemInFavorites);
        }