Ho questo codice che mi genera l'errore "System.Web.HttpParseException (0x80004005): 'focushere<%#((IPublishedContent)Container.DataItem).Id%>' is not a valid identifier."
.cs
HTML:
<asp:HyperLink id="focushere<%#((IPublishedContent)Container.DataItem).Id%>" runat="server" ></asp:HyperLink>
Codice:
this.Page.SetFocus("focushere"+Request.QueryString["id"]);