Latest Contributions by MaximilianGlas

Hi, I have a strange behaviour in my two test applications, both based on ArcGIS Runtime 100.2. Both worked fine for many hours of developing, now I got an exception in both, even I did not change anything in one of these apps. Both a very small and focused and have the same startup:         public MainWindow()         {             InitializeComponent();             InitializeMap();         }         private async void InitializeMap()         {             Map map = new Map(Basemap.CreateTopographicVector());             FeatureLayer featureLayer = new FeatureLayer(new Uri("http://sampleserver6.arcgisonline.com/arcgis/rest/services/Wildfire/FeatureServer/2"));             await featureLayer.LoadAsync();             map.OperationalLayers.Add(featureLayer);             MyMapView.Map = map;         }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Both are now crashing in the same line 13, where the LoadAsync should be executed. System.Net.Http.HttpRequestException occurred   HResult=0x80131500   Message=An error occurred while sending the request.   Source=mscorlib   StackTrace:    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)    at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)    at Esri.ArcGISRuntime.Internal.RequestRequiredHandler.<IssueRequestAndRespond>d__15.MoveNext()    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)    at System.Runtime.CompilerServices.TaskAwaiter.GetResult()    at CustomGPSProvider.MainWindow.<InitializeMap>d__1.MoveNext() in C:\Users\mag\Documents\Visual Studio 2017\Projects\CustomGPSProvider\CustomGPSProvider\MainWindow.xaml.cs:line 37 Inner Exception 1: WebException: The request was aborted: The request was canceled. Inner Exception 2: NullReferenceException: Object reference not set to an instance of an object. The StackTrace for the Inner Exception 2 is:    at System.Net.HttpWebRequest.CheckCacheUpdateOnResponse()    at System.Net.HttpWebRequest.CheckResubmitForCache(Exception& e)    at System.Net.HttpWebRequest.DoSubmitRequestProcessing(Exception& exception)    at System.Net.HttpWebRequest.ProcessResponse()    at System.Net.HttpWebRequest.SetResponse(CoreResponseData coreResponseData) I have no idea what's wrong. Any ideas? Max ... View more

Hi, I tried to write an Editing Workflow using the SketchEditor, where the user can select Features with the Rectangle drawing (SketchCretionMode.Rectangle‍). Everything is fine if the user draw a rectangle, the SketchEditor delivers the rectangle geometry as a result which I can use to select my features. But, if the user decides to just select a single object by a click, this will not work with rectangle creation mode. The SketchEditor returns a null object in this case. By the way, this is the same for all SketchCreationModes with values 3 to 9. I tried some workarounds to solve this, the best idea I had was to save the last click in the MapView in a local variable and - if the result of rectangle selection was null - to use this stored map point to select features. private MapPoint _lastLocationClicked; public MainWindow() {    MyMapView.GeoViewTapped += MyMapView_GeoViewTapped; } private void MyMapView_GeoViewTapped(object sender, Esri.ArcGISRuntime.UI.Controls.GeoViewInputEventArgs e) {     _lastLocationClicked = e.Location; } private async void Select_OnClick(object sender, RoutedEventArgs e) {     var creationMode =         (SketchCreationMode) Enum.Parse(typeof(SketchCreationMode), EditingModeComboBox.SelectionBoxItem.ToString());     Esri.ArcGISRuntime.Geometry.Geometry geometry =         await MyMapView.SketchEditor.StartAsync(creationMode, false);     MyMapView.SketchEditor.ClearGeometry();     if (geometry != null)     {         var query = new QueryParameters() {Geometry = geometry};         var selection = await MyMapView.Map.OperationalLayers.OfType<FeatureLayer>()             .First()             .SelectFeaturesAsync(query, SelectionMode.New);     }     else     {         if (creationMode == SketchCreationMode.Rectangle)         {             //add a scale dependent buffer             var buffer = MyMapView.MapScale / 500;             var bufferedGeometry = GeometryEngine.Buffer(_lastLocationClicked, buffer);             var query = new QueryParameters() {Geometry = bufferedGeometry};             var selection = await MyMapView.Map.OperationalLayers.OfType<FeatureLayer>()                 .First()                 .SelectFeaturesAsync(query, SelectionMode.New);         }         else         {             MyMapView.Map.OperationalLayers.OfType<FeatureLayer>()                 .First()                 .ClearSelection();         }     } }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ Of course, this is not a pretty way, so I have two questions: Is this the expected behavior, that the geometry returned is null in case of a single map click? Does anyone have a better idea how to allow both, rectangle and single point selection without enforcing the user to choice between this options manually? Cheers Max ... View more