Linq之Where

 1 public class Class1
 2     {
 3         public string PROPERTY
 4         {
 5             get;
 6             set;
 7         }
 8         public string PROPERTY2
 9         {
10             get;
11             set;
12         }
13     }
14 
15 use in method
16 
17 List<Class1> list = new List<Class1>();
18             var a = from e in list where e.PROPERTY != e.PROPERTY2 select e;
19             var b = list.First(e => e.PROPERTY != e.PROPERTY2);