You didn't supply the name of your RadGrid
, but the first thing I would try is:
RadGrid1.MasterTableView.DetailTables(0).Rebind(),
or, although I'm not sure whether this works for you (it compiles in VS for me), you might be able to say:
RadGrid1.MasterTableView.DetailTables("Fees").Rebind().
Obviously, replace 'RadGrid1'
with the name of your RadGrid.