I'm still interested in determining what causes the href to be removed from the control when cached as a HtmlAnchor.
We've ruled out an overall problem with the AttributeCollection since the Title attribute is cached properly. Anyone else have an idea?
I think its a 'bug', the HtmlAnchor control doesn't render the attributes in the usual way, as well as intercepting the href to check if a server side event was attached (in which case it will replace the href), if there isn't a server side event, the
href is first resolved (incase the url is an app relative one (ie, ~/foo)), and then the result of that resolution is rendered.. strangely then the resolution code removes the original attribute from the attributes collection..
This essentually means that a HtmlAnchor that doesn't use a server side event, is a one hit wonder.. once its rendered it .. renders (hurrrr!) itself broken.
Using a generic control just uses the default attribute rendering and so doesn't suffer this.