Legend
The Legend can be used to help end-users identify different chart elements such as series and data points. The Legend class represents a legend.
Each legend entry can be displayed using its corresponding legend marker and text identifying the entry.
The legend contains all chart series. To hide a series, set its ShowInLegend property to false.
The code snippet below illustrates how to customize the legend.
<Charts:PieChart>
<Charts:PieChart.Legend>
<Charts:Legend BorderThickness="0"
FontSize="12"
Margin="0,-10,0,-10"/>
</Charts:PieChart.Legend>
<Charts:PieChart>