Want to be able to change Bar label locations to the middle of the Bar

Hi Jason,

Our customer wants to put the label of the bar to the middle of the bar for stacked bar series, is that possible? See attached image. (same requirement for Vertical Bar Series)

Manipulating on DataLabel style does not seem to work. (We are using Version 7.0 WpfElement)

Thanks, Gordon

Hello Gordon

This will be possible in the next nightly build of version 7.0.

Simply set the HorizontalAlignment (for horizontal bars) and VerticalAlignment (for vertical bars) property on the custom label style, and the chart will know to position the labels in the center of the bars. (Or you could set both Horizontal and Vertical alignment properties to center so that you can use the same label style for both orientations of bar chart). This will work on normal and stacked bar series.

<Style x:Key="DataLabelStyle" TargetType="ms:DataLabel">
    <Setter Property="HorizontalAlignment" Value="Center" />
    <Setter Property="VerticalAlignment" Value="Center" />
    <Setter Property="Template">
        ...
    </Setter>
</Style>

-Jason Fauchelle

Thanks, Jason.

It worked.

Gordon

Hello Gordon

You posted an image saying that it doesn't work in code. As long as the label style has setters for the vertical and horizontal alignments, this should work. If not, please send the code you are using to build the label style.

-Jason Fauchelle

Sorry, Jason,

that image was captured when I pointed to the previous build, and I want to delete from the forum but unsuccessful.

It is working now.

Gordon

Ok no worries, great to hear it is all working.

• Jason Fauchelle

Hi Jason,

If we change the VerticalAlignment to value other than Center, it will stay on top of the bar, same thing for the HorizontalAlignment, right?

Thanks, Gordon

That is correct. It is a little bit odd to implement it this way, but this was the best way to implement it without adding a new property to the BarSeries that could change later. I simply check if center alignment has been applied, and this changes the placement logic to put the label in the center. Any other value will be ignored - resulting in the label being placed at the tip of the bar.

-Jason Fauchelle