How to apply label formatting to the trackball labels?

Description:

This article describes how to customize the trackball and apply the label formats to the trackball label.

Solution:

The trackball label can be customized by using the TrackBallLabelTemplate property, which is available in series and chart axes. The ChartPointInfo uses as a data context for this template. You can get the X and Y values from the ValueX and ValueY, respectively.

The convertor is used where the label formatting is done for the trackball labels.

XAML

C#

The following screenshot demonstrates customizing the trackball label information in which the ValueY is rounded off to six digits.

Figure 1 : TrackBall label customization.