Labels different from MajorStep

[Håkan]

Hi,

I have a chart that displays time on the horizontal axis.
I have MajorStep set to 15 minutes.
But is it possible to display the label for each hour instead?

I show 24 hours, and when having a label for each quarter they will overlap, even though I rotate them.
It would be nice to have labels for 00:00, 01:00, 02:00 and so on instead of 00:00, 00:15, 00:30, 00:45...
But i still want the ticks for each quarter.

The ScheduleView for example has both MajorTicks and MinorTicks, but I can't seem to find a similar Major/MinorStep for the ChartView.
A nice feature in this case would be that the labels follow the MajorStep and the ticks follow a MinorStep property.

Regards,
Håkan

[Petar Kirov]

Hi Håkan,

You can achieve this effect by setting the LabelInterval property of the DateTimeContinuousAxis to 4. Basically this property will make the chart place a label on every 4 major steps.

I hope this was helpful.

Regards,
Petar Kirov
the Telerik team

[Håkan]

Hi Petar!

Thanks for the reply, it works just fine!
I thought I hade looked at all Label properties, but it seems I missed this one :-)

Just one more question, the LabelInterval is not a dependency property right?
I tried to bind it to my ViewModel, since the user can select different intervals in a drop down.
But that generates a binding error saying:
"Object of type 'System.Windows.Data.Binding' cannot be converted to type 'System.Int32'."

Not a big deal, I just have to do it in code behind, but it would have been cleaner to bind it.

Regards,
Håkan

[Petar Kirov]

Hi Håkan,

I'm glad to hear that my last post was helpful.

All RadChartView axes inherit from the Axis class, which exposes the LabelInterval property which is in fact a DependencyProperty. I'm not quite sure why you could not bind it successfully to your ViewModel. I've made a simple project to test it and I am attaching it below for reference.
 
All the best,
Petar Kirov
the Telerik team

[Håkan]

Hi,

I get the same exception running your example code.

Is this changed recently?
I'm unfortunately stuck with Silverlight 4 at the moment so I'm running the 2012 Q2 SP2 version.

Regards,
Håkan

[Petar Kirov]

Hi Håkan,

We changed the Axis.ShowLabels, Axis.LabelInterval and
Axis.LabelFitMode properties to dependency properties with the Q3 2012 release (ver. 2012.3.1017). I am afraid that with the version that you are using, you will not be able to bind them.
 
Regards,
Petar Kirov
the Telerik team