Is there an Event that is triggered when all page controls are loaded and databound?

I am using the DevExpress suite of web controls and have built a page with a fairly large entry form with textboxes, comboboxes, etc.

I am writing code to randomly generate data to populate this large form with. I call this code with a line on the Page_Load event but I realize that at the time of the call, anything that has a datasource attached to it (combobox, for example), is not databound yet.

Is there an existing event I can hook into that is called when the all of the page's controls AND datasources are bound?

The PreRenderComplete page lifecycle event is fired after all controls are loaded and databound.