public IAsyncOperation<ItemDataTypedList> GetAsync(ItemQuery query)
{
query.ValidateRequired("query");
//
// Ensure the user is querying for typed information
//
if (!query.View.ReturnsTypedData)
{
throw new ArgumentException("query");
}
return AsyncInfo.Run(
async cancelToken =>
{
ItemQueryResult[] results = await ExecuteQueriesAsync(cancelToken, new[] {query});
if (results.IsNullOrEmpty())
{
return null;
}
ItemQueryResult result = results[0];
return new ItemDataTypedList(this, query.View, result.Items, result.PendingKeys);
});
}
internal async Task<ItemQueryResult[]> ExecuteQueriesAsync(CancellationToken cancelToken, ItemQuery[] queries)
{
queries.ValidateRequired<ItemQuery>("queries");
RecordQueryResponse queryResponse =
await Client.RecordMethods.GetThingsAsync<RecordQueryResponse>(m_recordRef, queries, cancelToken);
return queryResponse.Results;
}