Then I'd recommend against an Editable Grid design approach. Show the items in a filtered read-only grid, and on each row provide a clickable control that allow editing of that row's data - allowing the user to edit a single row, then save or cancel that edit, prior to allowing them to edit another one.
In general though, editable grids are conceptually something that you normally wouldn't want to (or be able to necessarily) do DB-side searching/filtering on. What exactly is your use case / what you hope to accomplish?
Then I'd recommend against an Editable Grid design approach. Show the items in a filtered read-only grid, and on each row provide a clickable control that allow editing of that row's data - allowing the user to edit a single row, then save or cancel that edit, prior to allowing them to edit another one.