Neil,
Thank you for your reply and sample code. Yes I would appreciate you sending me a multimap implementation. My email address is listed in my profile.

Thanks,
Einar
>Einar,
>
>A multimap (or one-to-many map) allows you to access multiple values to one key. This can be implemented as a Hashtable for key access with a custom indexer that returns another data structure, for example, an ArrayList. This allows you to express you data structure like this instead of having hundreds of properties.
>

>MultiMap tempMap = new MultiMap();
>
>tempMap.Add("1", "one");
>tempMap.Add("2", "two");
>tempMap.Add("3", "three");
>tempMap.Add("3", "duplicate three");
>
>Console.WriteLine(myMap["3"][0]);
>Console.WriteLine(myMap["3"][1]);
>

>As you can see we have added two entries to the "3" key of our Hashtable. We can also use a foreach loop to enumerate the contents.
>

>foreach (DictionaryEntry mapentry in tempMap)
>{
>    Console.Write(mapentry.Key.ToString());
>
>    foreach (object arrayentry in tempMap[mapentry.Key])
>    {
>        Console.Write(arrayentry.ToString());
>    }
>}
>

>Or something like that, the real advantage to using a data structure like this is that you can optimize your algorithms to suite you object graph/application profile. The multimap approach may not fit your requirments but a data structure would be a better approach to 700+ properties (IMHO).
>
>I can email the source to a multimap implementation if you would like it?
>
>Regards
>Neil