The new issue I am having is that markers will appear and disappear when zooming in and out at a certain point. I can pin point the exact moment when markers one by one start appearing or disappearing in successive order.
I have tried altering the marker size but issue persists.
I have tried togglling several different properties in the chart panes but issue persists.
at the address above is a demo project of what I am describing. scroll over to the points at around age 50-53. then zoom in and our on the x-axis. you will see that the markers appear and disappear as you scroll in and out.
There is also a video within the zip file showing how this is done using the test app.
thank you for your patience as it's taken a while to get to this demo.
setting the UseFullRange property did not solve the issue of the markers not showing up. I still had to zoom in on the Y axis and zoom out on the X axis to get them show up. similar to the video included in the zip file I posted for you.
If you have the lines from the other series in the pane visible when you zoom in and out on the X axis you'll notice that the markers start to disappear and reappear in coordination with when the other series lines start going beyond the Y axis.