Thank you for your answer, but i know to define fix Series and add a ItemsSource to it.
But i don't know how many series there will be displayed at runtime, because it will be read from database. every line is a custom defined constraint, there could be 1 or 2 or 15
As an example:
You have a big company with 15 or lets say 4 factories and now you want to compare the progress on workers recruited in
factory 1 with factory 2 and 3 by time (3 lines) or you want to compare the profits and loss of your factories at different lines (3 factories * 2 constraints = 6 lines) or at least you want to compare the quality test results of every product in your company with them of your factories.
The problem is, i can't define 15 AreaSeries and 15 properties if i need 18 LineSeries. I can't see an option to do this with RadCartesianChart but its possible to do this with RadChart, which doesn't meet my requirements, because you can bind mappings to the chart.
If its possible to do this without the trackball, it would be okay to abadon on that.