DropDownList controls in panel losing values on postback?

[yodatak]

Apologies if this is forgetful late-night coding, but....I've got some dynamically populated DropDownList controls that are being added to a panel at runtime. I've had the panel with and without explicitly enabling its viewstate.If I declare and populate them inside the usual \[code\]if (!Page.IsPostBack)\[/code\]block in the Page_Load then they simply don't exist on Postback - I try to iterate through the panel's controls collection and it's empty.If I declare and populate them separately in the page's OnInit then they exist, but lose their values.How do I get them to both exist and retain their values?