How to display more data information in the tooltip of UWP Charts

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

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

<Page.DataContext>
      <local:ViewModel/>
</Page.DataContext>
<Page.Resources>
    <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}"/>
            </TextBlock>
        </StackPanel>
    </DataTemplate>
</Page.Resources>
<StackPanel Margin="40">
    <syncfusion:SfChart Header="Population growth" Width="353" Height="298">
        <syncfusion:SfChart.PrimaryAxis>
            <syncfusion:CategoryAxis/>
        </syncfusion:SfChart.PrimaryAxis>
        <syncfusion:SfChart.SecondaryAxis>
            <syncfusion:NumericalAxis/>
        </syncfusion:SfChart.SecondaryAxis>
        <syncfusion:ColumnSeries 
                     ItemsSource="{Binding Data}"
                     XBindingPath="Country"
                     YBindingPath="Population"
                     ShowTooltip="True"
                     TooltipTemplate="{StaticResource tooltipTemplate}"/>
    </syncfusion:SfChart>
</StackPanel>

Output:

KB article - How to display more data in the tooltip of UWP Charts

See also

How to set the duration for chart tooltip

How to view the tooltip when the segment is underneath the axis line

How to change the alignment of chart tooltip