Here you can find the XAML LineSeries DataPoint style , and the default tooltip is defined as
<ToolTipService.ToolTip> <ContentControl Content="{TemplateBinding FormattedDependentValue}"/> </ToolTipService.ToolTip>
so you can use the whole style for your application and override the definition of the tooltip, for example:
<ToolTipService.ToolTip> <StackPanel Margin="2,2,2,2"> <ContentControl Content="{TemplateBinding IndependentValue}" FontSize="12"/> <ContentControl Content="{TemplateBinding DependentValue}" FontSize="12"/> </StackPanel> </ToolTipService.ToolTip>
and you will see the displayed prompt "X, Y".
source share