public ItemsViewModel()
{
Title = "Browse";
Items = new ObservableCollection <SampleModel>();
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
MessagingCenter.Subscribe <NewItemPage, SampleModel>(this, "AddItem", async(obj, item) =>
{
var newItem = item as SampleModel;
Items.Add(newItem);
await SampleDataStore.InsertItemAsync(newItem);
});
}
