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?

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Check out the "Init" events...

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