Hi Fikri,

First of all your code is C#, this is a vb.net forum. If you would like to convert it to vb.net here's a useful link: https://converter.telerik.com/

Evens with events and odds with odds? Well, you are seeding the class with an array such as { 1,2,3 } in your example. I would say use something like {2, 4, 6, 8} for evens and {1, 3, 5, 7, 9} for odds. Does that help?

Peter