Hi,
Please refer attached screen.
In a specific use case, it was required to add MapPins to a MapLayer, and later MapLayer to be added to a RadMap, and this exception.
Thanks
Indeed, when you add a MapPin to a MapLayer that is not added to the map yet, a NullReferenceException occurs:
public RadForm1()
{
InitializeComponent();
OpenStreetMapProvider osmProvider = new OpenStreetMapProvider();
osmProvider.EnableCaching = false;
MapTileDownloader tileDownloader = osmProvider.TileDownloader as MapTileDownloader;
tileDownloader.WebHeaders.Add(System.Net.HttpRequestHeader.UserAgent, "your application name");
this.radMap1.MapElement.Providers.Add(osmProvider);
var layer1 = new MapLayer();
MapPin pin = new MapPin(new PointG(34.04302, -118.26725));
layer1.Add(pin);
this.radMap1.Layers.Add(layer1);
}
I am logging it in our feedback portal by converting this ticket into a public thread on your behalf. You can track its progress, subscribe for status changes and add your comments on the following link - feedback item.
I have also updated your Telerik points.
Currently, the possible solution that I can suggest is to add the layer to the map first and then add the pins.
Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik
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