There are a few options you have. One is to set a PointTemplate for the bars of the series and set an element in the template with a MouseEnter handler. Another option is to use the series' MouseEnter and find the bar underneath the mouse by hit testing:
var result = VisualTreeHelper.HitTest((Visual)sender, e.GetPosition(
var bar = result.VisualHit
var dp = bar.DataContext
I hope this helps.
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for WPF.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely.
Sign up for Free application insights >>