查找字典的不同值 [英] Finding the distinct values of a dictionary
本文介绍了查找字典的不同值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个GroupSummary
class
,它具有一些类似的属性:
I have a GroupSummary
class
that has some properties like this in it:
public class GroupsSummary
{
public bool FooMethod()
{
////
}
public bool UsedRow { get; set; }
public string GroupTin { get; set; }
public string PayToZip_4 { get; set; }
public string PayToName { get; set; }
public string PayToStr1 { get; set; }
public string PayToStr2 { get; set; }
public string PayToCity { get; set; }
public string PayToState { get; set; }
public bool UrgentCare_YN { get; set; }
}
然后我有一个Dictionary
像<string, List<GroupsSummary>
对于每个这些词典项目,我都想找到所有与众不同的地址,但是为我定义一个不同地址的此类属性是
For each of these dictionary items I want to find all the distinct addresses but the properties of this class that define a distinct address for me are
PayToStr1,PayToStr2,PayToCity,PayToState
据我所知,我可以说mydictionartItem.select(t => t).Distinct().ToList()
之类的东西,但是我认为这将比较该类的所有属性,这是错误的.那我该怎么解决呢?
I know as far as I can say something like mydictionartItem.select(t => t).Distinct().ToList()
but I think that will compare all the properties of this class which is wrong. So how should I solve this?
推荐答案
var newDict = dict.ToDictionary(
x=>x.Key,
v=>v.Value.GroupBy(x=>new{x.PayToStr1, x.PayToStr2, x.PayToCity, x.PayToState})
.Select(x=>x.First())
.ToList());
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