Hi, I have got a question to something happening in my code that I do not understand. The following code has one for-loop. If this loop is started by the result-event of the http-service (getImmoMarkerData- function as shown below) I get the following error: error 1009 cannot access a property or method of a null object reference (actually I want to create polygons based on coordinates from a DB, but I reduced the code in order to narrow down the problem). On the other hand, when I put the for loop at the end of the mapready- function everything works fine. Why is that?? Thanks in advance! Padraig
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; width="100%" height="100%" layout="absolute" viewSourceURL="srcview/index.html" creationComplete="application1_creationCompleteHandler(event)"> <mx:Script> <![CDATA[ import com.google.maps.InfoWindowOptions; import com.google.maps.LatLng; import com.google.maps.LatLngBounds; import com.google.maps.Map; import com.google.maps.MapEvent; import com.google.maps.MapMouseEvent; import com.google.maps.MapType; import com.google.maps.controls.ZoomControl; import com.google.maps.overlays.Marker; import com.google.maps.overlays.Polygon; import com.google.maps.overlays.PolygonOptions; import flash.events.Event; import flash.geom.Point; import flash.utils.Dictionary; import mx.controls.Alert; import mx.events.FlexEvent; import mx.rpc.events.FaultEvent; import mx.rpc.events.ResultEvent; import mx.utils.ObjectUtil; private var map:Map; private var polygons:Object; public var searchAreas:Object = {'a' : [new LatLng(47, 11), new LatLng(47, 12), new LatLng(46, 12), new LatLng(46, 11), new LatLng(47, 11)]}; //event:ResultEvent public function getImmoMarkerData():void{ for (var said:String in searchAreas) { var polygon2:Polygon = createPoly2(said); map.addOverlay(polygon2); } } public function onHolderCreated(event:Event):void { map = new Map(); map.key = "ABQIAAAA4r7wuAXgpbeP- uTYTv9mgxT2yXp_ZAY8_ufC3CFXhHIE1NvwkxS2BGFFtlZZC--wVce0f1WaOVmX3w"; map.addEventListener(MapEvent.MAP_READY, onMapReady); mapHolder.addChild(map); } public function onHolderResized(event:Event):void { map.setSize(new Point(mapHolder.width, mapHolder.height)); } private function onMapReady(event:Event):void { map.enableScrollWheelZoom(); map.enableContinuousZoom(); map.setCenter(new LatLng(42, -99), 3, MapType.NORMAL_MAP_TYPE); map.addControl(new ZoomControl()); } private function createPoly2(said:String):Polygon { trace("said: " + said); trace("searchAreas: " + searchAreas[said]); var optionsDefault2:PolygonOptions = new PolygonOptions( { fillStyle: { alpha: 0.2 }} ); var optionsHover:PolygonOptions = new PolygonOptions( { fillStyle: { alpha: 0.9 }} ); var polygon2:Polygon = new Polygon(searchAreas[said], optionsDefault2); polygon2.addEventListener(MapMouseEvent.CLICK, function(event:MapMouseEvent): void { trace("InfoWindow"); //map.openInfoWindow(event.latLng, new InfoWindowOptions({content: stateCode})); }); polygon2.addEventListener(MapMouseEvent.ROLL_OVER, function(event:MapMouseEvent): void { polygon2.setOptions(optionsHover); }); polygon2.addEventListener(MapMouseEvent.ROLL_OUT, function(event:MapMouseEvent): void { polygon2.setOptions(optionsDefault2); }); return polygon2; } //Fehler beim Datenabruf: Aktivierung notwendig private function onError(event:FaultEvent):void{ Alert.show("Die Datenbank wird zur Zeit gewartet. Bitte versuchen Sie es später " + "nochmals (14)"); Alert.show(event.fault.name + ":" + event.fault.faultString); } protected function application1_creationCompleteHandler(event:FlexEvent):void { getData.send(); } ]]> </mx:Script> <mx:Panel title="StateMap" width="100%" height="100%"> <mx:UIComponent id="mapHolder" initialize="onHolderCreated(event);" resize="onHolderResized(event)" width="100%" height="100%"/> </mx:Panel> <mx:HTTPService id="getData" url="http://localhost/polygontest/php/ generate_xml_poly.php" resultFormat="e4x" useProxy="false" method="POST" result="getImmoMarkerData()" fault="onError(event)" > <mx:request xmlns=""> </mx:request> </mx:HTTPService> </mx:Application> -- You received this message because you are subscribed to the Google Groups "Google Maps API For Flash" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-api-for-flash?hl=en.
