自定义集合去重复

class Program
    {
        static void Main(string[] args)
        {
            var list = new List<TempData>
            { 
              new TempData{ name="a", tel="010", address="add"},
              new TempData{ name="a", tel="010", address="add"},
              new TempData{ name="a1", tel="010", address="add"},
              new TempData{ name="a1", tel="010", address="add"},
              new TempData{ name="a2", tel="010", address="add"}
            };

            Console.WriteLine("name\ttel\taddress");
            list.Distinct(new DataRowComparer()).ToList().ForEach(l => Console.WriteLine("{0}\t{1}\t{2}", l.name, l.tel, l.address));
            //list.ForEach(l => Console.WriteLine("{0}\t{1}\t{2}", l.name, l.tel, l.address));
        }

        public class TempData
        {
            public string name { get; set; }
            public string tel { get; set; }
            public string address { get; set; }
        }

        public class DataRowComparer : IEqualityComparer<TempData>
        {
            public bool Equals(TempData t1, TempData t2)
            {
                return (t1.name == t2.name && t1.tel == t2.tel && t1.address == t2.address);
            }
            public int GetHashCode(TempData t)
            {
                return t.ToString().GetHashCode();
            }
        }  
    }