UltraGrid with Custom Sort

I have the following code I'd like to be used to custom sort my one column:

char[] yourOriginalValues = new [] { '!', 'A', 'B', 'E', '$', 'N' };

IEnumerable<char> result = 
       yourOriginalValues.Where(c => Char.IsLetterOrDigit(c))
            .OrderBy(c => c)
            .Concat(yourOriginalValues.Where(c开发者_运维问答 => !Char.IsLetterOrDigit(c)));

How would I go about converting this to a custom sort order for WinUltraGrid?

Thanks!

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See Infragistics forum on this