protected override async Task Remove(CashQRCodeViewModel item)
{
List.Remove(item);
await AsyncDatabase.GetItemsAsync <CashQRCode>();
await AsyncDatabase.RemoveItemAsync <CashQRCode>(item.CashQRCode.Id);
}
protected override async Task InitializeListFromDatabase()
{
await AsyncDatabase.CreateTableAsync <CashQRCode>();
var cashQRCodes = await AsyncDatabase.GetItemsAsync <CashQRCode>();
List = new ObservableCollection <CashQRCodeViewModel>(
cashQRCodes.Select(c => GetCashQRCodeVM(c)));
}