handles claus and why it pops up

I was running a project where two pages are interacting.   In a simple test, page a talks to page B and vice a versa.  In trying to build the real project, I took project page A and copied the code for Page B into the project folder.  Everything was good as far as the connection to Page B and I was delighted.  There was a diagnostic in the building that the merging of the two into one project folder violated the namespaces and thus the two were merged into one (I believe projectname._default was mentioned as the merged result).  In trying to build the logic for the return to Page A from Page B, the ugly diagnostic regarding the handles clause rears itself.  I've seen it before, researched it before and tried to correct it before with little luck.  As I see it, the problem lies in the fact that the load subroutine in the codebehind of page A was eliminated in the merging of the two pages.  in the initial execution of Page a there i ...