find or list methods inside particular method of current executing page

[ameliac]

There is an asp.net webpage. Inside \[code\]Page_Load\[/code\] event there could be multiple method calls (\[code\]MethodA\[/code\], \[code\]MethodB(arg1, arg2)\[/code\] etc.)I have httpmodule. While accessing the page, it will first go thorough httpmodule. Inside that hpttpmodule, I want to find or list all methods which are being called in current executing page's \[code\]Page_Load\[/code\]. By this way, I want to make sure that a particular method (\[code\]MethodA\[/code\]) with its signature is implemented inside \[code\]Page_Load\[/code\] event. I will appreciate any implementation, weather httpmodule, base page, abstract class, interfaces, reflection etc... anything to achieve this objective. Thanks