Dynamic button problem

I want to create a pager with dynamic buttons. I have made a subroutine that renders the buttons, but the problem is the right way to call it. Calling this routine in the event of these dynamic buttons does not work, see this article:
http://aspalliance.com/110_Not_as_easy_as_it_seems_Webform_Dynamic_Buttons.2
However, I cannot call the routine in the Page_Load event eighter, because some code to update the page number has to be executed first when a button is clicked. My question is how to solve this problem.
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