泛型List去除重复指定字段ID

var list=listTemp.Distinct(new IDComparer ()).ToList();

重写比较的方法：

public class IDComparer : IEqualityComparer<T>

{

public bool Equals(T x, T  y)

{

if (x == null)

return y == null;

return x.ID == y.ID;

}

public int GetHashCode(T obj)

{

if (obj == null)

return 0;

return obj.ID.GetHashCode();

}

}

 

参考链接：http://blog.csdn.net/yang651280121/article/details/8259097