How to edit a SQL Server XML data field with asp.net Dynamic Data

Question

I have a site based around asp.net 3.5's Dynamic Data feature. Everything's working great, but I would like to add a tagging feature via a column with an XML data type. I've made the column and added an appropriate schema, but it is showing up as read-only and the scaffold will not display or modify the field.

So, I have a few questions:

1. What do I need to do in order to enable my scaffold to see this xml column?
2. How would I go about editing the tags through the scaffold without directly editing all the xml?
   • Would I add logic to the getter/setter in the metadata?
   • Presumably I would need a custom fieldTemplate, would I add the xml parsing to it?