OrderByDescending linq查询

Question

我试图按日期将deal.type显示为降序，但我无法将结果显示为降序。

    [Authorize(Roles = "admin")]
    [HttpGet]
    [Queryable(PageSize = 10)]
    public HttpResponseMessage Get([FromUri] Query query)
    {
        var data = db.database_ICs.AsQueryable();

        if (query.price_type != null)
        {
            data = data.Where(c => c.Cover == query.price_type);
        }
        if (query.deal_type != null)
        {
            data = data.Where(c => c.Type == query.deal_type)
                .OrderByDescending(c => c.UploadDate);
        }
        if (query.startDate != null)
        {
            data = data.Where(c => c.UploadDate >= query.startDate);
        }
        if (query.endDate != null)
        {
            data = data.Where(c => c.UploadDate <= query.endDate);
        }
        if (!data.Any())
        {
            var message = string.Format("No data was found");
            return Request.CreateErrorResponse(HttpStatusCode.NotFound, message);
        }

        return Request.CreateResponse(HttpStatusCode.OK, data);
    }

非常感谢任何帮助。

Answer 1

请尝试更改此内容：

[Queryable(PageSize = 10)]

为此：

[Queryable(PageSize = 10, EnsureStableOrdering = false)]

更多信息here。 希望有所帮助！

见啊！