public ItemsViewModel()
{
Title = "Browse";
Notes = new ObservableCollection <Note>();
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
//Handle "SaveNote" message
MessagingCenter.Subscribe <ItemDetailPage, Note>(this, "SaveNote",
async(sender, note) => {
Notes.Add(note);
await MockDataStore.AddNoteAsync(note);
});
//Handle "UpdateNote" message
MessagingCenter.Subscribe <ItemDetailPage, Note>(this, "UpdateNote",
async(sender, note) => {
await MockDataStore.UpdateNoteAsync(note);
await ExecuteLoadItemsCommand();
});
}