public async void Reload()
{
if (IsLoading)
{
return;
}
data.Clear();
IsLoading = true;
OnUpdated();
try {
var queryTask = query.Skip(data.Count).Take(batchSize).QueryAsync();
var countTask = query.CountAsync();
await Task.WhenAll(queryTask, countTask);
data.AddRange(queryTask.Result);
var count = countTask.Result;
HasMore = data.Count < count;
} finally {
IsLoading = false;
OnUpdated();
}
}