Zoom on the Multi panel chart

[Elina]

I try to realise the zoom functionality in my application used ChartFX.

Actualy I need something (little bit) more complicated than Magnifier.

First of all, I have number of different charts in my application, part of them have one panel with different series, and one is multipanel chart.

If on the one panel chart I can use ZoomStyle = ZoomStyle.Strip (or Auto) mode and it works satisfactory,

but on the multipanel char If I'll set the next mode:

myChart.Zoom.Style = ZoomStyle.Strip; // or Auto

myChart.Zoom.Mode = ZoomMode.Selection; 

myChart.Zoom.ViewStyle = ZoomViewStyle.Selection; 

After a first selection I'll get the ArgumentException: An item with the same key has  already been added.

 

If I use Zoom.Style = ZoomStyle.Scroll,  I could select only once, after then I get the scroll bars and can't select more. My customer want to make sequence of nested zooms and option to zoom out.

How could I make sequenced selection and get the min and max points of the selected area after each selection ( I need zoom only by axes X has date/time format )

Thanks

WpfApplication1.zip