比对两个同类型的List 

比对两个List中的数据

 1 List<Person> ListA= new List<Person>()
 2 {
 3 new Person(){ SerialNumber = "1", AccountNumber = "111"},
 4 new Person(){ SerialNumber = "2", AccountNumber = "222"},
 5 new Person(){ SerialNumber = "3", AccountNumber = "333"},
 6 new Person(){ SerialNumber = "4", AccountNumber = "444"},
 7 new Person(){ SerialNumber = "5", AccountNumber = "555"},
 8 };
 9 List<Person> ListB = new List<Person>()
10 {
11 new Person(){ SerialNumber = "1", AccountNumber = "111"},
12 new Person(){ SerialNumber = "5", AccountNumber = "BBB555"}, 
13 new Person(){ SerialNumber = "333", AccountNumber = "333"},
14 new Person(){ SerialNumber = "2", AccountNumber = "BB222"},
15 new Person(){ SerialNumber = "444", AccountNumber = "BBB444"}, 
16 };
17 
18 //ListA中存在 ListB不存在
19 var result1 = ListA.Union(ListB, new MyComparer())
20 　　　　　　　　　　　.Except(ListB, new MyComparer())
21 　　　　　　　　　　　.Cast<Person>().ToList();

22 //ListA中不存在 ListB存在
23 var result2 = ListA.Union(ListB, new MyComparer())
24 　　　　　　　　　　　.Except(GapExpenseList, new MyComparer())
25 　　　　　　　　　　　.Cast<Person>().ToList();
26 //ListA和ListB都存在 ListA的数据
27 var result3 = ListA.Intersect(ListB, new MyComparer()).Cast<Person>().ToList();
29 
30 //ListA和ListB都存在 ListB的数据
31 var result4 = ListB.Intersect(ListA, new MyComparer()).Cast<Person>().ToList();

 

再写一个Compare类

 1 public class MyComparer : IEqualityComparer<ExceptionCompare>
 2 {
 3 public bool Equals(ExceptionCompare x, ExceptionCompare y)
 4 {
 5 　　return x.SerialNumber == y.SerialNumber;
 6 }
 7 
 8 public int GetHashCode(ExceptionCompare obj)
 9 {
10 　　return obj.SerialNumber.GetHashCode();
11 } 
12 }

 

posted @ 2013-09-07 14:56  编不好程的东东不是一个好歌手  阅读(607)  评论(0)  编辑  收藏  举报