In my code behind (c#) I dynamically created some RadioButtonLists with more RadioButtons in each of them. I put all controls to a specific Panel. What I need to know is how
I don't think creating controls in the PageLoad is the right away of doing, first the asp.net life cycle goes from Initialization;Load ViewState Data;Load PostData; Object Load etc.
if you create controls at the Page_Load you'll lose the ViewState, events etc.
The right away is doing at PageInit, or if is a control (OnInit).
The next difficult is that at PageInit, you don't have the ViewState Available, if you need to reconstruct the number of objects you need to store some context/info in a hidden field ant then retrieve that information at PageInit, Create the objects and voila!
Example:
imagine that you need to create 1..N TextBoxes, you create html hidden field (not with runat=server) e.g. NumberOfTextBoxes.
When you are executing PageInit Code: you retrieve the value e.g. numberOfTextBoxes = Request.Form["NumberOfTextBoxes"], then you create the TextBoxes.
Remember the most important thing is to match the number and the order of existent Controls stored the ViewState.