public class DirComparer : System.Collections.IComparer
{
public int Compare(object x, object y)
{
return y.ToString().CompareTo(x.ToString());
}
}
DirectoryInfo di = new DirectoryInfo(“FolderPath”);ArrayList dirArr = new ArrayList(di.GetDirectories());
dirArr.Sort(new DirComparer());
This interface is used in conjunction with the Array.Sort and Array.BinarySearch methods. It provides a way to customize the sort order of a collection. See the Compare method for notes on parameters and return value.
The default implementation of this interface is the Comparer class. For the generic version of this interface, see System.Collections.Generic.IComparer<T>.