I want to have multiple charts (xamDataCharts) that share a single x axis.  I started by trying to display a CategoryDateTimeXAxis on its own with an ItemSource of 4 dates.  I can't get it to display.  

I know I can do it by hiding all of the axes all all charts but the bottom one but in my situation this is tricky in the way I am doing data binding.  I think the easiest way is to add a stand-alone x axis at the bottom and set its ItemSource the same as the rest of the other x axis.  

Is this possible?  Attached is a tiny project that I have been experimenting with.