New Post: Selecting Shape on MouseDown

Hi Pein,

I am not entirely certain from your description what is the exact problem you're having, but if what you're experiencing is false positives from SelectShapes (shapes are selected that are outside your proximity tolerance) there is a bug in the code for that function that can cause these problems. Paul had indicated this bug was fixed in the latest beta release of the map control, but I am still experiencing problems with shapes being selected that should not be.

This is my workaround, which is working great for me. Sorry it's not in VB, but of course easy to convert:

            if (sf.SelectShapes(ext, proximityTolerance, SelectMode.INTERSECTION, ref result)) {
                 int[] candidateShapes = result as int[]; //these shapes might be close
                ArrayList qualifyingShapes = new ArrayList(); //these shapes definitely are close

                Shape selectedShape = new Shape();

                for (int i = 0; i < candidateShapes.Length; i++) {
                    selectedShape = sf.get_Shape((int)candidateShapes[i]);
                    // Compute distance to point that represents mouse location
                    if (selectedShape.Distance(shpMouseLocation) < proximityTolerance) {
                        // Passed the test, so add to list of qualifying shapes
                        qualifyingShapes.Add(candidateShapes[i]);
                    }
                }
           }

Don Rahmlow
Readfield, ME US