Une classe de tri generic

Une classe de tri generic

public class GenericComparer<T> : IComparer<T>

    {

        private string propertyName;

        private SorterMode sorterMode;

        public GenericComparer(string propertyName, SorterMode direction)

            : base()

        {

            this.propertyName = propertyName;

            sorterMode = direction;

        }

        #region IComparer<T> Members

        public int Compare(T x, T y)

        {

            if (x == null)

            {

                if (y != null)

                    return -1;

                return 0;

            }

            if (y == null)

                return 1;

            if ((x is T) && (y is T))

            {

                IComparable value1 = x.GetType().GetProperty(propertyName).GetValue(x, null) as IComparable;

                IComparable value2 = y.GetType().GetProperty(propertyName).GetValue(y, null) as IComparable;

                if (sorterMode == SorterMode.Ascending)

                    return value1.CompareTo(value2);

                else

                    return value2.CompareTo(value1);

            }

            return 0;

        }

        #endregion

    }

    public enum SorterMode

    {

        Ascending,

        Descending

    }

Utilisation

           List<Contact> Contacts = new List<Contact>();

            Contacts.Add(new Contact(1, "Romagny"));

            Contacts.Add(new Contact(2, "Bellin"));

            Contacts.Add(new Contact(3, "Mariz"));

            Contacts.Add(new Contact(4, "Benon"));

            Contacts.Add(new Contact(5, "Felin"));

           GenericComparer<Contact> GenericComparer = new GenericComparer<Contact>("ContactName", SorterMode.Ascending);

            Contacts.Sort(GenericComparer);

            dataGridView1.DataSource = Contacts;