Export RadMap to screenshot.

WPF: We will add ExportToImage public method for WPF in R1 2017 with option whether to include map objects from Information/VisualizationLayer.

SL: There is a Silverlight limitation in WriteableBitmap:

https://social.msdn.microsoft.com/Forums/en-US/a5d59a36-ec26-4715-a707-dd0463ff0f46/writeablebitmap-has-protected-content-pixel-access-is-not-allowed?forum=bingmapssilverlightwpfcontrols

https://msdn.microsoft.com/en-us/library/system.windows.media.imaging.writeablebitmap%28VS.95%29.aspx?f=255&MSPPError=-2147217396

One partial solution if you use Bing Maps in RadMap is to use the Bing REST Static Map Imagery in order to download Image replicating the current viewport and zoomlevel of the RadMap.

     Bing REST Static Map => https://msdn.microsoft.com/en-us/library/ff701724.aspx 

     Using Bing REST API with .NET => https://msdn.microsoft.com/en-us/library/jj819168.aspx

Available in R1 2017 Official Release Version.