How difficult would it be to use Brian Lagunas' adorner framework http://ko.infragistics.com/community/blogs/blagunas/archive/2012/03/01/xamdatagrid-cell-adorner-framework.aspx but position the adorner elsewhere (e.g. on the side), and keep it visible in multiple cells?
Disregard. Taking another approach.
Hi Darryl,
I hope your other approach is working. Please let me know if you have any questions.