See the attached image.  The pyramid marked line has an infinity at x value 3, and the other line has an empty value at x=3.  The code for infinity and missing points is identical. Why is there a solid rather than the specified dotted line connecting the x=2 and x=3 values for the infinity?

Also, how can I just draw the dotted line without the marker? I have tried using

                    line.EmptyDataPointsAppearance.MarkerStyle.Visible = false;

but it doesn't work. I want to connect the points either side of the infinity or empty value using a dotted line through the average, without drawing the marker.

Thanks

Kevin