/// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="sender">
        /// The source of the event; typically <see cref="NavigationHelper"/>
        /// </param>
        /// <param name="e">Event data that provides both the navigation parameter passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
        /// a dictionary of state preserved by this page during an earlier
        /// session.  The state will be null the first time a page is visited.</param>
        private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
        {
            var fullDetailedProductGroups = await ProductGroupManager.GetFullDetailedAsync((String)e.NavigationParameter, 1, 100);

            BookRowPlvm          = fullDetailedProductGroups;
            pageRoot.DataContext = BookRowPlvm;
        }
 public ProductGroupPageSampleData()
 {
     Task.Run(
         async() =>
     {
         BookRowPlvm = await ProductGroupManager.GetFullDetailedAsync(ProductGroupFu, 1, 100);
     }).Wait();
 }