This sample shows how to draw a track shape that spatially queries a result set and binds it to a data grid. The sample also shows how you can add additional results to a previous set, or remove results depending upon how you pointerle your result set.

To try this sample out, draw a large rectangle track shape and preview the data grid below.  Then click the "Add To Set" radio button and draw another track shape.  After the second track shape has been drawn both result sets will be combined and returned in the data grid.