RadMaps Silverlight BingMap provider stopped displaying tiles in 2022 due to change in Bing Maps service.

Check notes here:

https://docs.microsoft.com/en-us/answers/questions/799630/arcgis-map-services-stopped-loading.html

Either workaround or statement regarding the future of this feature is needed.

MapPolyline (Informationlayer) or PolylineData (VisualizationLayer) disappear on higher zoom levels.

The origin of this issue is that Silverlight has limitation for the size of the polyline objects. Once this limit is reached, the calculations are wrong and the polyline is displayed incorrectly.

Possible workaround could be adding multiple smaller polylines / lines instead of one big polyline with many intermediate points.

InfrormationLayer has some Elements in it. Their attached property  telerik:MapLayer.Location is bound to Location from the ViewModel. The Radmap produces Exception.

The workaround is to set the Loacations directly in XAML or use the VisualizationLayer instead of the InformationLayer.

Fix is available in LIB Version 2015.2.914.

Index Out of Range  Exception is produced sometimes when removing and adding points in PolylineData object runtime.

As a workaround,  you can use MS Polyline (MS shapes) or PolylineView (Bindable wrappers) added in the Layer.

Available in LIB Version: 2015.3.1026.

An exception is thrown (for each empty date) if the loaded data file (.dbf ) have a column with date time values and there are empty values. 

Available in LIB version: 2015.1.0604

The pinch gesture does not zoom in/out the map in Silverlight.

RadMap's KML Reader throws argument exception if the KML file contains Styles with equal ids.

<Style id="inline1">

...

<Style id="inline1">

...

<Style id="inline1">

....

RadMap's VisualizationLayer is bound to collection of business objects - MapItems.

If you perform replace in the ItemsSource collection: items[0] = new MapItem(), the RadMap throws "Collection Add Event Missing Item: ..." exception.

Available in LIB version: 2015.1.0604

ClusterGenerator's AutoExpandWhenSingle property is set to true by default.

Adding a single item in the VisualizationLayer with Clustering enabled results in a single cluster which is not expanded but it should be.

Available in LIB Version 2014.3.1326.

RadMap with Clustering enabled on Visualization layer. Pushpins whose locations have equal or almost equal Latitudes or Longitudes are shown on particular zoom level (for example 19). You see them when clicking on the cluster. If the MaxZoomLEvel is set to be lower than 19, the pushpins are not placed in their correct positions after clicking on clusters and zooming out with mouse multiple times.

When the map shape is removed from the visualization layer while zooming is in process then the NullReferenceException is thrown.

When the RadMap contains visualization layer with map shapes and the RadMap is removed from visual tree while zooming is in process then the TargetInvocationException is thrown.

If I have a list a RadObservableCollectio<Route> and I clear the collection, routes disappear form the map, but if I remove them one by one, they stay on the map at all times, even are clickable and all. 

When the clustering is enabled in the visualization layer and the location of map item is changed dynamically then the item disappears if it is a single item (not within a cluster).

When the DBF-file has short length of record and it contains a few number of records then the AsyncShapeFileReader causes the following error: 'The DBF file is invalid or has unsupported format'.

The RadMap does not release all resources by the Dispose method when it uses the BingMapProvider.

Bing map provider does not work over HTTPS due to the fact that the tile images of Bing currently use different URLs for HTTP and HTTPS.

Any errors related to the image, however, cause the ImageFailed event from the UriImageProvider.Image property to fire repeatedly and never stop. This has been caused by 404 File Not found errors from missing images and also by a strange issue with Internet Explorer where large PNG images sometimes won't show.

Workaround:
Remove the image provider that works incorrectly using the Image.ImageFailed event.

The XAML team has recently reviewed this issue and will not be addressing it as at this time the team is focusing on the bugs impacting the highest number of developers. If you have encountered this issue and it is blocking for your work please contact us through the support ticketing system with details on your setup and a reference to this item.

MapPolyline (Informationlayer) or PolylineData (VisualizationLayer) disappear on higher zoom levels.


The origin of this issue is that Silverlight has limitation for the size of the polyline objects. Once this limit is reached, the calculations are wrong and the polyline is displayed incorrectly.

Possible workaround could be adding multiple smaller polylines / lines instead of one big polyline with many intermediate points.

The XAML team has recently reviewed this issue and will not be addressing it as at this time the team is focusing on the bugs impacting the highest number of developers. If you have encountered this issue and it is blocking for your work please contact us through the support ticketing system with details on your setup and a reference to this item.