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Dynamically Loaded User Controls

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I have been looking into how dynamical user controls work on web

This simple code is used to load and add the control to the page, which also
has a Label control.

TextBox tb = new TextBox();

This code has been tried in both the 'Page_Load' and the 'OnInit' events of
the Page.

(I also have a button on the page to test if viewstate is maintained after a
If I add text to the control ( after the page is loaded) and then click the
button to do a postback the text always stays the same.

Can someone tell me why the viewstate is maintianed in both cases? I thought
loading the control in the 'OnInit' event was the correct place to load
controls and to maintian its viestate?


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