>>>>Paul, unfortunately your suggestion doesn't work. When I entered cUserId = Me.Page.RoundPanel1.FindControl("HIddenField1").UniqueId, I got the squiggly blue line under it and when I hovered the mouse over it, it said that RoundPanel1 is not a member of class Page. This is so frustrating! Everything I try fails. It shouldn't be this difficult, should it?
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>>>It sounds like it may be nested inside of other controls. If that's the case, you may not actually be able to refer to it directly from the code behind w/o calling FindControl of the container object. For example, if your RoundPanel1 is inside of some other section of another control. Post a small section of your ASP.NET page here up to where the HiddenField1 is.
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>Try:
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>Page.ASPxRoundPanel1.FindControl("HiddenField1").UniqueID
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Naomi suggested the same without Page, and that seemed to work. It gets past this point. But I am still getting that could not find control error. Ugh!

Dana