public class PersonInfo

    {

        public int Index;

        public string Name;

        public override string ToString()

        {

            return string.Format("Index:{0}, Name:{1}", Index, Name);

        }

    }

    public class PersonInfoCompareByName : IEqualityComparer<PersonInfo>

    {

        public bool Equals(PersonInfo x, PersonInfo y)

        {

            if (x != null && y != null && x.Name == y.Name)

                return true;

            return false;

        }

        public int GetHashCode(PersonInfo obj)

        {

            if (obj == null)

            {

                return ;

            }

            else

            {

                return obj.Name.GetHashCode();

            }

        }

    }

        private void Button_Click(object sender, RoutedEventArgs e)

        {

            List<PersonInfo> PersonList = new List<PersonInfo>();

            for (int i = ; i < ; i++)

            {

                for (int j = ; j < ; j++)

                {

                    var info = new PersonInfo();

                    info.Index = j;

                    info.Name = "Name" + i;

                    PersonList.Add(info);

                }

            }

            var items = PersonList.Distinct(new PersonInfoCompareByName());

            foreach (var item in items)

            {

                Console.WriteLine(item.ToString());

            }

        }