How do I change the font size for axis labels?

[aedev]

I'm able to change the chart area, title and legend font sizes, but not the axis labels.

[Anne Lyon]

Setting the chart area font size also sets the x and y axis labels for me:

ctlRadChart.DefaultView.ChartArea.FontSize = 10;

But I would like to change the font size for the point labels (at run time), which I don't seem to be able to do?

[Sia]

Hello,

Indeed, you can change the FontSize of the Axes' labels by adding

ctlRadChart.DefaultView.ChartArea.FontSize = 10;

Regarding your question about the SeriesItemLabels, you can change their Style by having:

SeriesItemLabelStyle = Resources["CustomLabelStyle"] as Style

in your code behind.

and also having your new style in the UserControl resources:

<UserControl.Resources>
    <Style TargetType="charting:SeriesItemLabel" x:Key="CustomLabelStyle">
        <Setter Property="FontSize" Value="10" />
     </Style>
</UserControl.Resources>

Here you can find more information about this topic: 
http://www.telerik.com/help/silverlight/radchart-styling-and-appearance-styling-item-labels.html

Unfortunately RadChart doesn't support changing the FontSize of the SeriesItemLabel in runtime at the moment.  Please accept our apologies. I have logged this issue in our bug tracking system, so our developers will look into it.

Greetings,
Sia
the Telerik team

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[Yavor]

Hi Anne Lyon,

This is to let you know that we have addressed the issue at hand - the fontsize applied to the chart area is now applied to the chart series labels. The fix will be available as part of the Latest Internal build, which you can download from your account later on next week.

Best wishes,
Yavor
the Telerik team