How would I get the X-Y values for a SeriesMapping on mouseover? I'd like to display the values somewhere other than a ToolTip, so enabling tooltips is not my solution. I'm using MVVM, so a codebehind solution, or any UI Element access (i.e. anything requiring System.Windows) is not allowable; however, I would like to be able to use these values in the ViewModel.
One solution I was considering was using a transparent CustomGridLine with a mouseMoved trigger attached; however, I'm not sure how I would access the SeriesMapping in the ViewModel without needing to use System.Windows to get the Chart itself first.
EDIT: I found this article, but it requires UIElement access: http://www.telerik.com/help/silverlight/radchart-howto-create-location-crosshair-for-radchart.html
. I want to do something similar to this, except cutting out the need for Telerik.Windows namespace and adding snapping to the SeriesMappings on the chart.