I have an Esri Silverlight/WPF UI with a mapcontrol and a slider. In the mapcontrol is a graphics layer with a single polyline on it, created using coordinates from a layer in a mapservice. The shapefield of the featureclass used by the mapservice has PolylineM's.
I would like to find a way to move a point marker graphic along the polyline to reflect the M position as derived from the slider. The min and max values of the slider are the MinM and MaxM values of the polyline.