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    public ActionResult Index()
    {
    List<RandomData> dataList = new List<RandomData>
    {
    new RandomData {Id = 1, UserId = 1,RandomDatas = 1,IsSelected = 0, UpToDate= Convert.ToDateTime("2015-7-18 23:59:59")},

    new RandomData {Id = 12, UserId = 51,RandomDatas = 3,IsSelected = 0, UpToDate= Convert.ToDateTime("2015-7-15 23:59:59")}

    };
    dataList = dataList.Where(o => DateTime.Compare(o.UpToDate, Convert.ToDateTime("2015-7-16 23:59:59")) < 0).ToList();
    RandomData val = GenerateRandomNumber(dataList);
    var query = (from r in dataList
    where r.UserId == val.UserId
    select r).FirstOrDefault().IsSelected = 1;

    return View();
    }

    public static RandomData GenerateRandomNumber(List<RandomData> dataList)
    {
    Random rd = new Random();
    int i = rd.Next(dataList.Count);
    return dataList[i];
    }

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  • 原文地址:https://www.cnblogs.com/niejun/p/4652030.html
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