/// <summary>
/// Loads async all books from the API and updates the stored books
/// </summary>
public async Task LoadDataAsync(MasterDetailsViewState viewState)
{
SampleItems.Clear();
var books = await GameOfThronesDataService.GetAllBooksAsync();
SubstitueEmptyAttributes(books);
if (viewState == MasterDetailsViewState.Both)
{
if (SampleItems != null)
{
Selected = SampleItems.First();
}
}
}
