editing web app resource

[alf]

Hi,
I want to use resource to keep all user interfaces text and give a page to
the user to edit this resource. The page could be a datagrid bind to the XML
resource file.
I'm thinking in performance because all web forms will read from this XML
resource file each time to render a control with a localized propierty. so,
will be, maybe, a lot of sessions reading from this file.
Is this possible ?? There is a better way to localize a website and at the
same time keep accesible for editing this localized texts ??

thanks in advance, alf.