Why is it recommended to save viewstate values in the PreRender event call?
<p>I am trying to persist member variables by saving them in the ViewState (only a few small variables) however I read up and I gather its better to save them into the ViewState at the PreRender stage than PageLoad? </p>

<p>I can see that the ViewState can be saved to anytime before Page rendering, but does it make any difference in PreRender or PageLoad?</p>
