Hi,

I think you need the generic comparer Something like:

   public class DecendingDateCompare : System.Collections.Generic.IComparer<DateTime>
    {
         public int Compare(DateTime x, DateTime y)
        {
            return x.CompareTo(y);
        }
     }

Return logic might be wrong but you get the idea. HTH
Viv

>I have the following SortedList:
>
>

>SortedList<DateTime, Bookmark> BookMarks = new SortedList<DateTime, Bookmark>();
>

>Where BookMark is a custom object of my creation. I would like to have this list automatically sort in decending order, i.e., the most recent DateTime first, etc.
>
>I have created the following custom Compare Class:
>
>

>    public class DecendingDateCompare : IComparer
>    {
>        public int Compare(object x, object y)
>        {
>            //   I am passing objects x, y to conform to the IComparer signature??
>            try
>            {
>                DateTime d1 = DateTime.Parse(x.ToString());
>                DateTime d2 = DateTime.Parse(y.ToString());
>                return d1.CompareTo(d2)*-1;
>            }
>            catch (System.Exception ex)
>            {
>                return x.ToString().CompareTo(y.ToString());
>            }
>        }
>    }
>
>

>If I leave the above declaration of my SortedList as above, no errors, but as soon as I try the below I get errors:
>
>

> SortedList<DateTime, Bookmark> BookMarks = new SortedList<DateTime, Bookmark>(new DecendingDateCompare());
>

>
>The errors are:
>

>The best overloaded method match for 'System.Collections.Generic.SortedList<System.DateTime,Marketware.Bookmark>.SortedList(int)' has some invalid arguments
>

>Argument '1': cannot convert from 'Marketware.DecendingDateCompare' to 'int'
>
>
>Any Ideas of where I am going wrong? Thanks!!
>
>
>Bob