How to Dynamic SliceStyleSelector

[Kadir Kilicoglu]

Hi,

I've a problem with the SliceStyleSelector. Actually i couldn't find a decent example. I'm struggling with the piechart and binding custom object which includes Color property in object. What i want to do is take that color property and bind it to slice style (fill) but how? Try to bind Color property to Setters Value but it raised a exception that can't bind to read-only value. I've found something like http://www.telerik.com/community/forums/wpf/charting-kit/pie-chart---dynamic-slice-styles-issue.aspx But it shows basic implementation. Is there any detailed example or anyone show an example?

Thanks.

[Kiril Stanoev]

Hi Kadir,
Unfortunately such scenario is not supported. Sorry for the inconvenience caused.

Regards,
Kiril Stanoev
Telerik

[Till]

Hey,

I have the same requirements for my app, looked at the link you provided and found a solution:

Create a custom StyleSelector for you chart. Inside the SelectStyle override method access the DataObject that you provide via a Binding to the ItemsSource of your PieSeries like this:

var color = ((SimpleTimesheet.Portable.ViewModel.ChartItem) (((Telerik.Charting.DataPoint) (item)).DataItem)).Color;

and just return a new Style with the color from your Databound Object:

var style = new Style(typeof(Path));
style.Setters.Add(
    new Setter(
        Shape.FillProperty,
        new SolidColorBrush(color.ToMediaColor())
    ));
return style;

Hope this helps. Let me know if you need an example.
Best
Till