Hi Richard,
GridDataBoundGrid has a protected method, CreateAccessibilityInstance, that allows you to create an AccessibleObject for the grid. From there, you can get GridDataBoundGridRecordAccessibleObject and GridDataBoundGridFieldHeaderAccessibleObject. So, the basic accessibilty support is already included. But generally, each application has to customize this support based on its needs.
Here is a minimal sample that shows you "How to customize the accessibilty object in a Grid?".
http://www.syncfusion.com/support/user/uploads/gdbg_accessibilty.zipBest regards,
Haneef