Overview
RadLegendControl is a separate control that facilitates the reading and understanding of the displayed information in the RadChart.
Figure 1: RadLegendControl Visual Structure
In order to use RadLegendControl, you need to add the following namespace:
xmlns:telerikPrimitives="using:Telerik.UI.Xaml.Controls.Primitives"
You can see the Properties article for more information about the definition and properties of the control.