Updated grid control to set datastore selected row when grid present.
Updated grid control to set datastore selected row when grid present.

When grid is present on page set data store selected row in get and set
selectedRowData runtime properties by checking for selectedRow class.
This allows it to manually updated by custom code and still stay in
sync.
RapidInfoSys/Rapid,RapidInfoSys/Rapid,RapidInfoSys/Rapid,RapidInfoSys/Rapid