Question

我遇到了延续令牌的问题。

我有16个文件，并希望一次获取5个。

这是对提供的方法的请求现在的工作方式： 1.获取5，获取延续令牌。工作良好。我得到了我的5份文件。

使用延续令牌获得5个以上+新的延续令牌。工作良好。获取5个其他文档。
使用延续令牌获得5个以上+新的延续令牌。获得与步骤1相同的结果集+与步骤1中相同的延续令牌。

它始终在这两组和两个相同的标记之间保持交替。

这是代码。

public async Task<Tuple<List<AdDocument>,string,int>> QueryWithPagingAsync(string continuationToken)
    {
        List<AdDocument> ads = new List<AdDocument>();
        var totalAdsCount = await GetAdsCount();

        if (string.IsNullOrEmpty(continuationToken))
        {
            FeedOptions options = new FeedOptions { MaxItemCount = 5 };
            var query = Client.CreateDocumentQuery<AdDocument>(DocumentCollection.DocumentsLink, options).AsDocumentQuery();
            var feedResponse = await query.ExecuteNextAsync<AdDocument>();
            string continuation = feedResponse.ResponseContinuation;

            foreach (var ad in feedResponse.AsEnumerable().OrderBy(a => a.Id))
            {
                ads.Add(ad);
            }

            return new Tuple<List<AdDocument>, string, int>(ads, continuation, totalAdsCount);
        }
        else
        {
            FeedOptions options = new FeedOptions { MaxItemCount = 5, RequestContinuation = continuationToken };
            var query = Client.CreateDocumentQuery<AdDocument>(DocumentCollection.DocumentsLink, options).AsDocumentQuery();
            var feedResponse = await query.ExecuteNextAsync<AdDocument>();
            feedResponse = await query.ExecuteNextAsync<AdDocument>();
            string continuation = feedResponse.ResponseContinuation;

            foreach (var ad in feedResponse.AsEnumerable().OrderBy(a=>a.Id))
            {
                ads.Add(ad);
            }
            return new Tuple<List<AdDocument>, string, int>(ads, continuation, totalAdsCount);
        }

    }

Answer 1

所以我移动了＆＃34;字符串continuation = feedResponse.ResponseContinuation;＆＃34;在执行之下，现在它可以工作。

工作版：

        public async Task<Tuple<List<AdDocument>,string,int>> QueryWithPagingAsync(string continuationToken)
    {
        List<AdDocument> ads = new List<AdDocument>();
        var totalAdsCount = await GetAdsCount();if (string.IsNullOrEmpty(continuationToken))
        {
            FeedOptions options = new FeedOptions { MaxItemCount = 5 };
            var query = Client.CreateDocumentQuery<AdDocument>(DocumentCollection.DocumentsLink, options).AsDocumentQuery();
            var feedResponse = await query.ExecuteNextAsync<AdDocument>();
                            foreach (var ad in feedResponse.AsEnumerable().OrderBy(a => a.Id))
            {
                ads.Add(ad);
            }

            string continuation = feedResponse.ResponseContinuation;
            return new Tuple<List<AdDocument>, string, int>(ads, continuation, totalAdsCount);
        }
        else
        {
            FeedOptions options = new FeedOptions { MaxItemCount = 5, RequestContinuation = continuationToken };
            var query = Client.CreateDocumentQuery<AdDocument>(DocumentCollection.DocumentsLink, options).AsDocumentQuery();
            var feedResponse = await query.ExecuteNextAsync<AdDocument>();

            foreach (var ad in feedResponse.AsEnumerable().OrderBy(a=>a.Id))
            {
                ads.Add(ad);
            }
            string continuation = feedResponse.ResponseContinuation;

            return new Tuple<List<AdDocument>, string, int>(ads, continuation, totalAdsCount);
        }

    }



public async Task<Tuple<List<AdDocument>,string,int>> QueryWithPagingAsync(string continuationToken)
    {
        List<AdDocument> ads = new List<AdDocument>();
        var totalAdsCount = await GetAdsCount();

        if (string.IsNullOrEmpty(continuationToken))
        {
            FeedOptions options = new FeedOptions { MaxItemCount = 5 };
            var query = Client.CreateDocumentQuery<AdDocument>(DocumentCollection.DocumentsLink, options).AsDocumentQuery();
            var feedResponse = await query.ExecuteNextAsync<AdDocument>();
                            foreach (var ad in feedResponse.AsEnumerable().OrderBy(a => a.Id))
            {
                ads.Add(ad);
            }

            string continuation = feedResponse.ResponseContinuation;
            return new Tuple<List<AdDocument>, string, int>(ads, continuation, totalAdsCount);
        }
        else
        {
            FeedOptions options = new FeedOptions { MaxItemCount = 5, RequestContinuation = continuationToken };
            var query = Client.CreateDocumentQuery<AdDocument>(DocumentCollection.DocumentsLink, options).AsDocumentQuery();
            var feedResponse = await query.ExecuteNextAsync<AdDocument>();

            foreach (var ad in feedResponse.AsEnumerable().OrderBy(a=>a.Id))
            {
                ads.Add(ad);
            }
            string continuation = feedResponse.ResponseContinuation;

            return new Tuple<List<AdDocument>, string, int>(ads, continuation, totalAdsCount);
        }

    }

DocumentDB分页标记。不断得到错误＆＃34;一

1 个答案: