LineSeries: how to show some labels, some not?

[Michael]

Hello,

I would like my chart to consists of a LineSeries that does not have labels shown on every node. For this, I have bound the ItemsSource of the LineSeries to an ObservableCollection<MyCrazyLineNode>. MyCrazyLineNode has Properties for the Value, the Category and an additional Property "IsValueVisible".

I tried to accomblish this by setting "ShowLabels" to "False" and define my own labels in the PointTemplate.
My code looks similar to this:

<telerik:LineSeries ItemsSource="{Binding MyCrazyLineNodes}" ValueBinding="Value" CategoryBinding="Category" ShowLabels="False">
  <telerik:LineSeries.PointTemplate>
    <DataTemplate>
      <Grid>
        <Canvas Margin="0,10,0,0" Visibility="{Binding IsValueVisible, [Converter stuff...}">
          <TextBlock Text="{Binding Value}" />
        </Canvas>
        <Path Data="M4,0 L8,4 L4,8 L0,4 Z" Fill="Red" Width="8" Height="8" Stretch="Fill" />
      </Grid>
    </DataTemplate>
  </telerik:LineSeries.PointTemplate>
  <AxisStuffAndSoOn />
</telerik:LineSeries>

However, this does not work, because I cannot bind to the Property IsValueVisible.
How can I do what I want? I hope my problem is understandable. ;-)

Best Regards
Michael

[Missing User]

Hi Michael,

The easiest way to do this is to create a new property (which is either an empty string or the value you need to show), use the LabelDefinitions and set the Binding property. Please refer to the attached sample project.

All the best,
Ivan N.
the Telerik team

[Michael]

Thanks a lot!

Best regards,
Michael Hilus