Display figures as % in pie chart

[Stuart]

Hi

I currently have a data series with figures in that I want to display in a pie chart but as their equivalent ratio as a % against the total. Do I have to work out these percentages as an extra property in my viewmodel or is there a way that the Telerik chart can work it out itself?

Thanks

[Giuseppe]

Hi Stuart,

You can achieve the desired effect by setting the SeriesDefinition.ItemLabelFormat property like this:

RadChart1.DefaultSeriesDefinition = new PieSeriesDefinition() { ItemLabelFormat = "#%{P2}" };
RadChart1.ItemsSource = new int[] { 1, 2, 5, 5, 2 };

Hope this helps.


Sincerely yours,
Freddie
the Telerik team

[Stuart]

Ah - definitely helps, thanks. However the numbers I'm feeding in are slightly bigger than your example and I'm getting error messages saying 'Value was either too large or too small for an Int32'. Is there any way to overcome this?

Thanks again

[Giuseppe]

Hello Stuart,

Indeed we must admit there was a problem with handling big numbers in the latest official version of the control.

However, our developers have already managed to address the issue so you can download the weekly internal build from your Client.Net account to get the fixed version (the fix will also be included in the official service pack release scheduled for later this week).

Hope this helps.


Sincerely yours,
Freddie
the Telerik team