In what order do the events of an ASPX page execute. As a developer is it important to understand these events?  

If you try to access it in Page_Load that is way previous than Control's own  Render method. See ther Page/control lifecycle goes like this for the Page  and controls (being already in the controls collection, dynamic ones play  catchup) 

1. Instantiate 

2. Initialize 

3. TrackViewState 

4. LoadViewState (postback) 

5. Load postback data (postback, IPostBackDatahandler.LoadPostdata) 

6. Load