private async Task <SearchResult> QueryAsync(Req.T_OGDSearchRequest request, int seitenNummer) { request.Seitennummer = seitenNummer; request.Sortierung = new Req.BundesnormenSortExpression() { SortDirection = Req.WebSortDirection.Ascending, SortedByColumn = Req.BundesnormenSortableColumn.Kurzinformation }; // We do continuous loading in the UI, thus the user cannot specify the page size request.DokumenteProSeiteSpecified = true; request.DokumenteProSeite = Req.PageSize.Fifty; try { string requestAsString = MessageSerializationHelper.SerializeToString(request); var client = CreateServiceClient(); requestResponse response = await client.requestAsync("Br", requestAsString); var searchResult = MessageSerializationHelper.DeserializeFromString <Resp.T_OGDSearchResult>(response.Body.requestResult); return(Mapper.MapSearchResult(searchResult)); } catch (Exception ex) { return(new SearchResult(ex.ToString())); } }