//
// AsyncDbListBase core methods implementation
/// <summary>
/// Fully load lazy loaded items.
/// </summary>
protected override async Task DoFurtherLoadAsync()
{
IEnumerable <Card> cards;
HashSet <int> cardsId;
lock (LockObject)
{
cards =
Objects.Skip(GetFurtherLoadedIndex())
.Take(
Math.Max(Index - GetFurtherLoadedIndex(), 0) + IncrementalFurtherLoadMax
- IncrementalFurtherLoadMin);
cardsId = new HashSet <int>(cards.Select(c => c.Id));
}
IEnumerable <Card> updateCards =
await
Db.Table <Card>()
.FurtherLoad(LazyLoader)
.Where(c => cardsId.Contains(c.Id))
.ToListAsync()
.ConfigureAwait(false);
lock (LockObject)
{
foreach (Card card in cards)
{
LazyLoader.UpdateFromFurtherLoad(
card, updateCards.FirstOrDefault(uc => uc.Id == card.Id));
}
FurtherLoadedIndex = FurtherLoadedIndex + updateCards.Count();
}
}