We currently store off all of the charts we're currently using as XML. When we want to pull up a report, we merge the DataTable with the chart control loaded up from the XML.
If we were to supply additional elements in the XML schema, would loading/saving that schema from the chart control maintain the additional XML elements or will it be lost? We plan on looking for these elements to peform additional run time functionality.
I don't suspect you'll maintain it, but I just wanted to know before I attempt to maintain additional 'custom' sections in a separate document. If you don't, it would be something interesting to support in some fashion or another.