Is there an ASP.NET event that occurs after postback, but before the page is destroyed/recreated?

My ASP.NET form contains a collection of dynamically-created radiobuttons that are created and configured in the Page_Load event handler.

Normally, I process postback data in the Page_Load handler, using the condition:

if (IsPostBack)

However, since the controls that I need to access are created IN the Page_Load handler, the postback data from the previous rendering of the page is lost. To better illustrate the problem, here is an outline of the events as they occur:

1-Page_Load is invoked for the first time

2-An unknown number of radiobuttons are created dynamically

3-The radiobuttons are configured, based on information present on the server

4-The radiobuttons are added to the page's content

5-The user selects an option, and clicks the submit button

6-The Page_Load handler is invoked for the second time

7-The radio-buttons are added dynamically, exactly as 开发者_如何学Gobefore

8-The radio-button that the user checked is seemingly non-existant for processing

It seems like I need to be processing different parts of this in different event handlers. Is there an event that occurs after postback, but while the original radiobuttons are still accessible?

Check out the "Init" events...

http://msdn.microsoft.com/en-us/library/ms178472.aspx