I found some posts on adding markers (and moving markers) on LineChart but I could not find a way to add a marker (and potentially moving marker) to the WPFToolKit LineSeries.
So anyone has any suggestions on how to accomplish this task?
Also, is there a way to draw a point over y-axis? My chart goes from x >= 0 and y >= 0. So when I try to add a point with x = 0, visually it cuts it off in half. And of course I can not change the minimum x value to be less than 0.