Good evening mam or sir,

         I am doing a usecase titled "Book Arena". I am not going to use Cascading drop down. I am on doing new idea. I have used buttons for countries.  I have done binary file for arena. Now the doubts was. If I choose country, it want to be directed to that those arenas which belong to that country and If I choose that arena it want to be show that those services which belongs to that arena. Whether we can use data transform here. Whether we can use some other ideas. Please respond as soon as possible.

                                                               Thanking you.