Datalist problem (Very Urgent)

Hello,

This is the brief description of my problem --

I have an array which contains random number of values (strings). I want to
display all the values in that array on my aspx page with a 'check box' next
to it in vertical fashion. I have few lines of C# code, that needs to be
executed when I click the checkbox depending on the value of the array. I
want to display the values and checkboxes only when I click a button. How
can I do this?

Regards
Steven