C＃LINQ查找一对多差异

我有一对多的字典，我需要查找数据中发送给用户的任何差异。下面是我的查询C＃LINQ查找一对多差异

var FinalQuery = from final in masterquery 
       where final.gpa_vsl != string.Empty || final.eta1_datetime.Date.CompareTo(final.eta_date.Date) != 0 || 
       final.ata_date > DateTime.MinValue || final.cfit_vsl != final.gpa_vsl 
       group final by final.file_no into newGroup 
       orderby newGroup.Key 
       select newGroup; 
var Finaldict = FinalQuery.ToDictionary(g => g.Key, g => g.ToList()); 

foreach(var file in FinalDict) { 
    if (file.Value.Count() > 1) { 
    //Here I need to find out if all eta1 and all vessel match 
    //below is what I am trying to do with Linq 

    bool match = from f in file.Value 
      where file.Value.Count(f => f.eta1_date.CompareTo(f.eta1_date)) = file.Value.Count() 
      select true; 

    //What I am trying to do is if all eta1 dates match return a total int to compare to the total count of values. 
    } 
}

解释是这样的：

Key - FileNo = 123 
Value - Container = 123 , eta1 = 2/20/17, ata1 = 2/20/17, vessel = boat1 
Value - Container = 456, eta1 = 2/18/17, ata1 = 2/18/17, vessel = boat2 
Value - Container = 789, eta1 = 2/20/17, ata1 = 2/20/17, vessel = boat1 
Value - Container = 987 , eta1 = 2/20/17, ata1 = 2/20/17, vessel = boat1

我愿意接受任何和所有的建议。需要找到容器456信息与其他信息不匹配。希望我提供足够的信息

来源

2017-02-20 chris clifton

你可以阐述什么是你的榜样字典中的差异？ – pquest

我们的目标是让所有eta1，ata1和船只匹配。在上面的eta1不符合eta1的其余部分。如果全部不匹配，那么我需要向用户返回一个异常 –

只需注意'orderby'后跟''.ToDictionary'破坏了顺序，因为字典在枚举时不保证任何顺序 – tinudu

快速胜利将是：

bool match = file.Value.GroupBy(f => new {f.eta1, f.ata1, f.vessel}).Take(2).Count() == 1

，或者更好的

var c0 = file.Value[0]; 
var match = file.Value.Skip(1).All(c => c.ata1 == c0.ata1 && ...);

来源

2017-02-20 23:32:45 tinudu

我已经离开了当天的工作，但明天会试试这两个。感谢您通过 –

发送此快速胜利。谢谢你的帮助 –

C＃LINQ查找一对多差异

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