I'm working on a small project to bind to live data.  The data I'm using comes in one point at a time once per second.  I don't store the values throughout time but would like to have them added to a chart as they come in (like how processor usage is shown in the Task Manager).  I have tested the class by binding it to a label and I can see it changing every second.  Do I need to create an additional class to collect these values into a list and then bind the chart to that list, or is it possible to bind directly to a chart and it will collect the values?

Also, I'm trying to complete the binding in XAML only.