Chart for WPF - How to Create a Custom Tooltip for a Series Point

This example implements a custom tooltip that displays another chart with a GDP history for the selected country when hovering over a bar.

Implementation Details

The System.Windows.DataTemplate object specifies the custom tooltip appearance. The object is assigned to the Series.ToolTipPointTemplate property. The GetDataSource() and GetGDPs() methods supply charts with data from the GDP datasource.

Files to Review

• MainWindow.xaml (VB: MainWindow.xaml)
• MainWindow.xaml.cs (VB: MainWindow.xaml.vb)

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