>Use generic version IMHO. You can use Contains or IndexOf (-1 if do not exist):
>
>http://msdn2.microsoft.com/en-us/library/ms132398.aspx
>http://msdn2.microsoft.com/en-us/library/ms132407.aspx
>http://msdn2.microsoft.com/en-us/library/ms132410.aspx

I tried to use Contains and I found that we cannot trust that. Basically, it was not able to find the item I put in it. This was really simple. I put something like "My first value", "My second value", "Etc.". When I try to use Contains, it was never finding the item.