void OnRequestData(RequestDataArgs request, RequestDataResult feedback)
{
if (RequestData != null)
{
RequestData(request, feedback);
}
}
void srv_GetRecordsCompleted(object sender, GetRecordsCompletedEventArgs e)
{
RequestDataResult feedback = e.UserState as RequestDataResult;
if (feedback == null)
{
return;
}
feedback.RaiseFeedback(e.Result.GetRecordsResult);
}
protected virtual void RaiseGetData(int skipCount, int takeCount, bool isBackgroundRequest = false)
{
int startIndex = Storage.IndexOfFirstNotInitializedItemOnInterval(skipCount, takeCount);
int endIndex = startIndex + takeCount;
if (endIndex > Count)
{
endIndex = Count;
}
endIndex = Storage.IndexOfFirstInitializedItemOnInterval(startIndex, endIndex - startIndex);
skipCount = startIndex;
takeCount = endIndex - startIndex;
if (takeCount == 0)
{
return;
}
Storage.InitializeItemsLoading(skipCount, takeCount);
RequestDataArgs requestArgs = new RequestDataArgs(skipCount, takeCount, isBackgroundRequest);
RequestDataResult requestResult = new RequestDataResult(requestArgs, RequestDataFeedback);
RequestData(requestArgs, requestResult);
}
void OnRequestData(RequestDataArgs request, RequestDataResult feedback)
{
srv.GetRecordsAsync(new GetRecordsRequest(request.SkipCount, request.TakeCount), feedback);
}
protected override void RequestDataFeedback(RequestDataResult requestResult)
{
LoadData(((RequestDataArgs)requestResult.RequestArgs).SkipCount, requestResult.Data.GetEnumerator());
}
protected abstract void RequestDataFeedback(RequestDataResult requestResult);
protected override void RequestDataFeedback(RequestDataResult requestResult)
{
base.RequestDataFeedback(requestResult);
requestDataCounter--;
}
