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How to display more data in the tooltip of WPF Chart (SfChart)?

Platform: WPF |
Control: SfChart |
Published Date: July 21, 2015 |
Last Revised Date: July 13, 2021

WPF Chart provides the support to display the needed information from its model of populated items source along with Tooltip UI customization with the help of TooltipTemplate in the chart series as shown in the following code example.


Here, display the both country's name and its population details in the tooltip. By default, it displays the corresponding y-axis value of that segment.


      <DataTemplate x:Key="tooltipTemplate">
           <StackPanel Orientation="Horizontal">
               <!--Template element has DataContext as its Segment named Item. From it, you can access the correponding Model-->
               <TextBlock  FontFamily="Segoe UI"  Foreground="White">
                   <Run Text="{Binding Item.Country}"/>
                   <Run Text=":"/>  
                   <Run Text="{Binding Item.Population}"/>
    <syncfusion:SfChart Header="Population growth" Width="353" Height="298">
                         ItemsSource="{Binding Data}"
                         TooltipTemplate="{StaticResource tooltipTemplate}"/>


WPF Chart tooltip showing multiple values


View sample in GitHub


See also


How to display the tooltip when the mouse is in any region of the FastLineBitmapSeries in WPF Charts

How to customize WPF Charts tooltip

How to set the duration for chart tooltip

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Eduardo Arruda
Mar 03, 2021

I get an Exception when tooltip should appear.

The following message appear under "<TextBlock Text= "{Binding Converter={StaticResource conver}}" />"

"An object of the type "BioPlatAQC.ModuleViews.LoadSampleView" cannot be applied to a property that expects the type "System.Windows.Data.IValueConverter"."

Eduardo Arruda
Mar 03, 2021

The Exception: System.Windows.Markup.XamlParseException: ''Set property 'System.Windows.Data.Binding.Converter' threw an exception.' Line number '15' and line position '24'.'

Inner Exception InvalidCastException: Unable to cast object of type 'BioPlatACQ.ModuleViews.Views.LoadSampleView' to type 'System.Windows.Data.IValueConverter'.

This exception was originally thrown at this call stack: [External Code]

Yuvaraj Palanisamy [Syncfusion]
Mar 05, 2021

Hi Eduardo Arruda,

Greetings from Syncfusion.

We have Checked the reported problem with our KB document “Make tooltip to display X and Y value together”, and it was working fine at our end. Also, we have prepared the sample for your reference. Please find the sample from the below link.


Regards, Yuvaraj.

Eduardo Arruda
Mar 05, 2021

Thank you Yuvaraj. It is working. I've made a mistake on the line

"<local:Converter x:Key="conver"/>"

now is working.

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