[英]Remove duplicates from the list with lists as objects
I have one list with the class as a structure as below 我有一个类的列表如下
class cl
{
public string name1{ get; set; }
public string name2{ get; set; }
public string name3{ get; set; }
public List<c2> c2List{ get; set; }
}
class c2
{
public string st1{ get; set; }
public string str2{ get; set; }
}
Now I have list of C1 class and i need to remove duplicates from that list can any one help me how can i do it 现在我有C1类的列表,我需要从该列表中删除重复项,任何人都可以帮助我该怎么做
When referencing c2List, call it similarly to the below: 引用c2List时,类似于以下内容进行调用:
var distinctList = c1.c2List.Distinct();
(Assuming that c1 is instantiated further up the code) (假设在代码的上方进一步实例化了c1)
I think this is what your after.. 我想这就是你的追求。
var c2Items = new c2[]
{
new c2 { st1 = "value 1", str2 = "value 2" },
new c2 { st1 = "value 2", str2 = "value 1" },
new c2 { st1 = "value 1", str2 = "value 2" }
};
var parent = new cl() { c2List = new List<c2>(c2Items) };
IEnumerable<c2> distinctitems =
parent
.c2List
.GroupBy(o => new { o.st1, o.str2 })
.Select(o => o.First());
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