[Solved] Style depending on bubble value

[Simon]

Hello,

I have a bubble chart with positive and negative value for the same series. Would it be possible to give a different style for a negative value bubble ? Since my bubbles are blue, the negative ones could be red. If it is possible, what are the style changes that I can apply to a bubble (dotted perimeter, filled with a texture etc.) 

Thank you in advance for your help!

[Petar Marchev]

Hi,

One option you have is to use the CreateItemStyleDelegate property of the RadChart (help topic here). The code below should also be helpful:

public Style chart1_CreateItemStyle_RedIfNegative(Control c, Style s, DataPoint dp, DataSeries ds)
{
 Style resultStyle = new Style(s.TargetType);
 resultStyle.BasedOn = s;

 var chartItem = c as BaseChartItem;
 var lineSeries = c as LineSeries;

 if (chartItem != null && ds[chartItem.CurrentIndex].YValue < 0)
 {
  Brush redBrush = new SolidColorBrush(new Color() { R = 200, G = 20, B = 20, A = 55 });
  resultStyle.Setters.Add(new Setter(Shape.FillProperty, redBrush));
 }

 return resultStyle;
}

Regards,
Petar Marchev
Telerik

[Simon]

Works perfectly, thank you!