We need to represent directed lines in our application, in a similar way to what it's possible to do with ArGIS Engine, but there is currently no way to do so with ArcGIS Runtime (for .Net).
Example with ArcGIS Engine :
http://gis.stackexchange.com/questions/76286/how-to-show-polyline-direction-in-arcgis-for-desktop-ar...This is a big requirement on our side, and there is no easy workaround.
A native way to do that would be greatly appreciated.