Data Point Labels

Charts for WPF Forum

Posted 6 years ago by Chris
Version: 13.1.0581
Avatar

Hi,

We're integrating WPF charts at the moment and was wondering how to go about specifying a custom label for a data point. 

For example, we have an IEnumerable of complex data items which are being plotted. We are using the YPath/XPath approach to read properties from each component. Each point on a specific series has a special meaning which should be labelled, so that when we mouseover it, the description appears. The label needs to come from a property on the data point instance, which is neither the X nor the Y value.

I'm probably missing something very obvious, and any pointers would be greatfully accepted.

Thanks

Chris

Comments (3)

Answer - Posted 6 years ago by Actipro Software Support - Cleveland, OH, USA
Avatar

Hi Chris,

Unfortunately scenario this is not currently possible. Right now data point labels can only use the values resovled by XPath and YPath. We think this is a great suggestion and definitely want to enable your scenario as a feature in our next major release. When that feature gets added, we'll post an update on this thread.


Actipro Software Support

Posted 6 years ago by Chris
Avatar

Thanks for the v. quick reply. I look forward to any updates in the future which will enable us to use this feature.

Posted 6 years ago by Actipro Software Support - Cleveland, OH, USA
Avatar

Hi Chris,

This feature has been implemented as a LabelFunc property on all series (BarSeries, LineSeries, etc), which you can bind to a function pointer. That function receives several parameters including the original value from your data source, which you can use to build a custom label. The LabelFunc feature will be available in the next product release.


Actipro Software Support

The latest build of this product (v2018.1 build 0675) was released 10 days ago, which was after the last post in this thread.

Add Comment

Please log in to a validated account to post comments.