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  • List<T> OrderBy问题

    List<List1Dto> listResult = new List<List1Dto>();            

    listResult.Add(new List1Dto { UserName = "user1", UserPwd = "user1", UserTitle = "user1", OrderNumber = "1" });            

    listResult.Add(new List1Dto { UserName = "user2", UserPwd = "user2", UserTitle = "user2", OrderNumber = "2" });            

    listResult.Add(new List1Dto { UserName = "user10", UserPwd = "user10", UserTitle = "user10", OrderNumber = "10" });            

    listResult.Add(new List1Dto { UserName = "user20", UserPwd = "user20", UserTitle = "user20", OrderNumber = "20" });

    List<List1Dto> list1 = listResult.OrderBy(ao => ao.OrderNumber).ToList();            

    string tmp = "";            

    foreach (List1Dto item in list1)            

    {                

      tmp += item.UserName + "\r\n";           

    }

    结果:

    user1

    user10

    user2

    user20

    修改:

    List<List1Dto> list1 = listResult.OrderBy(ao => Convert.ToInt32( string.IsNullOrEmpty(ao.OrderNumber) ? "0" : ao.OrderNumber)).ToList();  

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  • 原文地址:https://www.cnblogs.com/snlfq2000/p/2332688.html
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