public override Style SelectStyle(object item, DependencyObject container)
        {
            IBubbleDataPoint dataPoint = (IBubbleDataPoint)item;

            return(dataPoint.BubbleSize.Value > 0 ? this.PositiveStyle : this.NegativeStyle);
        }
        public override RadSize SelectBubbleSize(IBubbleDataPoint dataPoint)
        {
            double size = SelectBubbleSize(dataPoint.BubbleSize.Value);

            return(new RadSize(size, size));
        }
 public override RadSize SelectBubbleSize(IBubbleDataPoint dataPoint)
 {
     double size = SelectBubbleSize(dataPoint.BubbleSize.Value);
     return new RadSize(size, size);
 }