# Click event in point shape **URL:** \ **Category:** WebForms\ **Created:** [February 22, 2011, 6:33am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707 "2011-02-22T06:33:12Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Thiago](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/t/ec9cab/32.png) [@Thiago](https://community.thinkgeo.com/u/Thiago)\ **Post date:** [February 22, 2011, 6:33am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/1 "2011-02-22T06:33:12Z")
I need a way to capture click events on a PointShape HighlightFeature.  So far I tryed adapting the HelloWorld code so now it looks like this:                 Feature feature = new Feature(new PointShape(-40.121, -20.44));                 Map1.HighlightOverlay.HighlightStyle = Map1.HighlightOverlay.Style;                 Map1.HighlightOverlay.Features.Add("feature", feature);                 Map1.HighlightOverlay.Click += new EventHandler\(EventLayer\_Click); but the execution don't go nowhere near the EventLayer\_Click function.  That means the click events aren't being captured. Also I'd like to know where there is some clear info on event handling (which handlers belong to which objects).  Seems quite complicated.   ---
**Author:** ![Thiago](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/t/ec9cab/32.png) [@Thiago](https://community.thinkgeo.com/u/Thiago)\ **Post date:** [February 22, 2011, 10:15am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/2 "2011-02-22T10:15:09Z")
I’m sorry the actual code is:      `                Feature feature = new Feature(new PointShape(-40.121, -20.44));                Map1.HighlightOverlay.HighlightStyle = Map1.HighlightOverlay.Style;                Map1.HighlightOverlay.Features.Add(“feature”, feature);                Map1.HighlightOverlay.Click += new EventHandler(EventLayer_Click); `      So, do you know a way to handle click events when I click a PointShape?  Is that even possible? ---
**Author:** ![Thiago](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/t/ec9cab/32.png) [@Thiago](https://community.thinkgeo.com/u/Thiago)\ **Post date:** [February 22, 2011, 10:50am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/3 "2011-02-22T10:50:43Z")
I just found something else out.  If I add a RectangleShape too, clicking events work both on the point and on the rectangle but if I only add a point it doesn't.  With RectangleShape it aways works.  What's the problem with PointShape?  should I do something else? ---
**Author:** ![Chris3](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/c/65b543/32.png) [@Chris3](https://community.thinkgeo.com/u/Chris3)\ **Post date:** [February 22, 2011, 2:21pm UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/4 "2011-02-22T14:21:54Z")
I am having a similar problem with selecting point shapes, however my point shapes are loaded from the capital.shp file that comes with the software.        `    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            Map1.MapUnit = GeographyUnit.Meter;            WorldMapKitWmsWebOverlay worldMapKitOverlay = new WorldMapKitWmsWebOverlay("WorldMapKitOverlay");            Map1.CustomOverlays.Add(worldMapKitOverlay);              GoogleOverlay google2 = new GoogleOverlay("Google Map - Satellite");            google2.IsBaseOverlay = true;            google2.GoogleMapType = GoogleMapType.Satellite;            google2.IsVisibleInOverlaySwitcher = true;            google2.JavaScriptLibraryUri = new Uri("maps.google.com/maps/api/js?sensor=false&key=ABQIAAAAwUVrNSiu8pgbfv7gPho0_xSX6kVpdh7m28mTRWGCCVFRikBZwxT61ZFYI9M3hUSZXGfuAkPdoubmkQ");            Map1.CustomOverlays.Add(google2);            ManagedProj4Projection mproj4Projection = new ManagedProj4Projection();            mproj4Projection.InternalProjectionParameters = ManagedProj4Projection.GetEpsgParameters(4326);            mproj4Projection.ExternalProjectionParameters = ManagedProj4Projection.GetGoogleMapParameters();            ShapeFileFeatureLayer capitalLayer2 = new ShapeFileFeatureLayer(@"C:\Program Files\ThinkGeo\Map Suite Web Evaluation Edition 4.5\Samples\CSharp Samples\SampleData\World\capital.shp");            // We can customize our own Style. Here we passed in a color and a size.            capitalLayer2.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.CreateSimpleCircleStyle(GeoColor.StandardColors.White, 7, GeoColor.StandardColors.Brown);            // The Style we set here is available from ZoomLevel01 to ZoomLevel05. That means if we zoom in a bit more, the appearance we set here will not be visible anymore.            capitalLayer2.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level05;            capitalLayer2.ZoomLevelSet.ZoomLevel06.DefaultPointStyle = PointStyles.Capital3;            // The Style we set here is available from ZoomLevel06 to ZoomLevel20. That means if we zoom out a bit more, the appearance we set here will not be visible any more.            capitalLayer2.ZoomLevelSet.ZoomLevel06.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;            capitalLayer2.FeatureSource.Projection = mproj4Projection;                            LayerOverlay loCapitolLayer = new LayerOverlay("CapitolOverlay", false, TileType.SingleTile);            loCapitolLayer.Layers.Add("capitalLayer2", capitalLayer2);            //loCapitolLayer.Layers.Add(capitalLabelLayer2);            Map1.CustomOverlays.Add(loCapitolLayer);        }    }    protected void Map1_Click(object sender, MapClickedEventArgs e)    {        LayerOverlay staticOverlay = (LayerOverlay)Map1.CustomOverlays["CapitolOverlay"];        ShapeFileFeatureLayer shapeFileLayer = (ShapeFileFeatureLayer)(staticOverlay.Layers["capitalLayer2"]);        shapeFileLayer.Open();        Collection selectedFeatures = shapeFileLayer.QueryTools.GetFeaturesContaining(e.Position, new string[] { "CITY_NAME", "ADMIN_NAME" });        shapeFileLayer.Close();        if (selectedFeatures.Count > 0)            lblOutput.Text = "" + new StringBuilder().AppendFormat("CITY_NAME: {0}; ADMIN_NAME: {1}",                selectedFeatures[0].ColumnValues["CITY_NAME"],                selectedFeatures[0].ColumnValues["ADMIN_NAME"]).ToString();    } ` ---
**Author:** ![Thiago](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/t/ec9cab/32.png) [@Thiago](https://community.thinkgeo.com/u/Thiago)\ **Post date:** [February 22, 2011, 2:23pm UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/5 "2011-02-22T14:23:48Z")
Just for the record I’m using the “Map Suite Web Evaluation Edition 4.5” to find out if it serves my company needs so we can license or not and so far it kind of doesn’t.  Let me describe in detail what I’m trying to do:      -  show a bunch of points spread across the map      - when one of this points is clicked, should have his associated position stored in a array of sorts      - with some of these positions stored in a array, calculate the distance of the created path      That means, I would be important to print some points across a map using PointShape or a Marker or whatever so the user could select some of them to create a path and see the calculated distance.  Looking throught your forums it seems that it’s only possible to get a clicked marker by looking for the nearest objects of some point:   [gis.thinkgeo.com/Support/DiscussionForums/tabid/143/aff/12/aft/7791/afv/topic/Default.aspx](http://gis.thinkgeo.com/Support/DiscussionForums/tabid/143/aff/12/aft/7791/afv/topic/Default.aspx)      Would you mind showing me some code on how to do that the right way using PointShapes or Markers or whatever is best in this cenario? Or maybe point me to a good example on your pages or something, because I really can’t find then if they exists.      Thanks in advance.  ---
**Author:** ![ThinkGeo](https://community.thinkgeo.com/user_avatar/community.thinkgeo.com/thinkgeo/32/25029_2.png) [@ThinkGeo](https://community.thinkgeo.com/u/ThinkGeo)\ **Post date:** [February 23, 2011, 3:59am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/6 "2011-02-23T03:59:49Z")
Thiago,  We confirmed it is a bug (Point can't be selected when there is only one in the highlightOverlay) in WebEditon 4.5.0.0, we have fixed it and you can get the latest Evalution WebEdition (4.5.115.0 or later) to have another try.  Chris,  In your "Map1\_Click" method, you should use the following code to get the features near the point you clicked.  ` Collection selectedFeatures = shapeFileLayer.QueryTools.GetFeaturesNearestTo(e.Position, GeographyUnit.DecimalDegree, 1, new string[] { "CITY_NAME", "ADMIN_NAME" }); ` Thanks, Ivan ---
**Author:** ![Thiago](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/t/ec9cab/32.png) [@Thiago](https://community.thinkgeo.com/u/Thiago)\ **Post date:** [February 23, 2011, 8:11am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/7 "2011-02-23T08:11:17Z")
Nice answer but your code is only good for getting streets and city names like the other guy needed.  I want to return markers I create and draw myself.  If I wanted to get these kind of map elements there is plenty of examples not only on your samples but also on your foruns.  Let me try to explain again:  fist step I create a lot of markers, each with its own position on the map, on a marker overlay.  This is a snipet from my code where platLocs is a [n,2] array of positions using DecimalDegree unit:    for (int c = 0; c \< platLocs.GetLength(0); c++)                 {    double fact = 0.05;    lotsOfFeatures[c] = new Feature(platLocs[c,0], platLocs[c,1]);    markerOverlay.Features.Add("lots" + c, lotsOfFeatures[c]); } markerOverlay.Click += new EventHandler\(markerOverlay\_Click);                 \ \Map1.CustomOverlays.Add(markerOverlay);   \ \As you can see after I added all markers to the overlay I create a event handling for this overlay then I add this overlay to the Map1 object.  So far so good, every marker show up on the map and all.  The problem is, when I click one of this markers I wanted to get the position it's on, but inside "markerOverlay\_Click" function I have no way of getting it.  Now I just tried to use your little function up there.  The idea I had was to create a event handler for the Map1 object, then from inside "Map1\_Click" function I would be able to retrieve the markerOverlay object and the clicked position and maybe use the "GetFeaturesNearestTo" function from markerOverlay to retrieve the right marker,  except InMemoryMarkerOverlay have no "GetFeaturesNearestTo" function right?  Using the HighlightOverlay member of Map1 seems like a option but can I get the exact position of the PointShape Feature from inside a click event?  Do you understand what I'm trying to do here? Is it possible with your suite to do something like that at all?  If I'm not giving you enough info about what I'm trying to do just ask me.  Thanks in advance.\ ---
**Author:** ![Thiago](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/t/ec9cab/32.png) [@Thiago](https://community.thinkgeo.com/u/Thiago)\ **Post date:** [February 23, 2011, 8:51am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/8 "2011-02-23T08:51:53Z")
I think I found a way to at least retrieve the position of a clicked PointShape on the map.  From inside the HighlightOverlay click event:      `             PointShape platPoint = null;            if (e.ClickedFeature.GetWellKnownText().Contains(“POINT”))            {                platPoint = new PointShape(e.ClickedFeature.GetWellKnownText());            }            else            {                platPoint = e.Location;            }`      Still this way I don’t have the own PointShape object.  I can only rebuild it so I can get its position.  That means I can’t, for example, change its color from inside the event handler function right?  ---
**Author:** ![Val](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/v/e56c9b/32.png) [@Val](https://community.thinkgeo.com/u/Val)\ **Post date:** [February 23, 2011, 11:25am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/9 "2011-02-23T11:25:21Z")
Thiago, Chris,  I would like to point out a couple of Code Community web projects that deal with clicking on features and identifying them. Those projects show how to implement that so that it is intuitive for the user. Please, see those projects _Get Features Clicked On (Web)_ and _Get Features Clicked On (Web) 2_. They show how to do that with different types of layers (point, line and polygon based). I think you will get inspired. [wiki.thinkgeo.com/wiki/Map\_Suite\_We...n.28Web.29](http://wiki.thinkgeo.com/wiki/Map_Suite_Web_Edition_Spatial_Functions_Samples#Get_Feature_Clicked_On.28Web.29) [wiki.thinkgeo.com/wiki/Map\_Suite\_We....28Web.292](http://wiki.thinkgeo.com/wiki/Map_Suite_Web_Edition_Spatial_Functions_Samples#Get_Feature_Clicked_On.28Web.292)  Also, I would like to add that it always important to take into account in what Map Unit your map is because this is used as a parameter in the geometric functions underneath. ---
**Author:** ![vivek3](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/v/b782af/32.png) [@vivek3](https://community.thinkgeo.com/u/vivek3)\ **Post date:** [March 13, 2012, 5:41am UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/10 "2012-03-13T05:41:12Z")
hi,   i have drawn the shapes on map(like circle ,rectangle polygon) now i want to get the markers within that  shapes(circle etc)      plz help how to get the markers and related data wthin the shape      Thanks   vivek ---
**Author:** ![Val](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/v/e56c9b/32.png) [@Val](https://community.thinkgeo.com/u/Val)\ **Post date:** [March 19, 2012, 3:28pm UTC](https://community.thinkgeo.com/t/click-event-in-point-shape/5707/11 "2012-03-19T15:28:32Z")
Vivek,  You have to understand that Markers are use to represent points only. So, if you have a circle, a rectangle or a polygon, Marker is not the appropriate style. What you could do though, for example, you could get the center point of the shape and use a Marker to represent it as you can see in the code below. I don't know if this is what you want to do but I am giving you some ideas.   `  SimpleMarkerOverlay markerOverlay = new SimpleMarkerOverlay("MarkerOverlay");    markerOverlay.DragMode = MarkerDragMode.Drag;    markerOverlay.Markers.Add(new Marker(polygonShape.GetCenterPoint(), new WebImage(21, 25, -10.5f, -25f)));              Map1.CustomOverlays.Add(markerOverlay);`