Limit on items in collection?

In vb6 I belive you could only get 255 items in a collection... Is there a limit in .Net??

Thanks

I added 1,000,000 numbers to an ArrayList , it did it quite fast , I tried to add 10,000,000 numbers but the program couldn't respond and hang up . Keep in mind after adding hunderds or thousands of elements , you will get low memory .