Is possible and how to customize individual data color in LiveChart? Instead of having the same color scheme for a series in code behind, I like to programmatically and conditionally color an individual data column. I thought of, as a work around, to separate and overlay the series like having a Red Series {null,null,null,7.8,null} and a Green Series {2,3,2,null,4} but it is strongly typed and I cannot pass in null.
In short, how to I from left to the right:
[EDIT 1]
I read the suggested link but the mapper seems not working properly on LineSeries.
cvValues = new ChartValues<double>() { 1.01, 2.02, 3.03, 4.04, 1.01, 2.02, 3.03, 4.04, 1.01, 2.02 };
cvUSL = new ChartValues<double>() { 3.5, 3.5, 3.5, 3.5, 3.5, 3.5, 3.5, 3.5, 3.5, 3.5 };
cvLSL = new ChartValues<double>() { 1.5, 1.5, 1.5, 1.5, 1.5, 1.5, 1.5, 1.5, 1.5, 1.5 };
DangerBrush = new SolidColorBrush(Colors.Red);
mapper1 = new CartesianMapper<double>()
.X((value, index) => index + 1)
.Y((value, index) => value)
.Fill((value, index) => value > 3.5 ? DangerBrush : null)
.Stroke((value, index) => value > 3.5 ? DangerBrush : null)
.Fill((value, index) => value < 1.5 ? DangerBrush : null)
.Stroke((value, index) => value < 1.5 ? DangerBrush : null);
DataContext = this;
And here is my XAML (simply wanting the fill in red if a data goes out of upper or lower boundary)
<lvc:LineSeries x:Name="lsUSL"
Values="{Binding cvUSL}"
PointGeometrySize="0"
PointForeground="White"
Stroke = "Turquoise"
StrokeDashArray = "8"
StrokeThickness = "0.8"
Fill = "Transparent"
Configuration="{Binding mapper1}"/>
<lvc:LineSeries x:Name="lsLSL"
Values="{Binding cvLSL}"
PointGeometrySize="0"
PointForeground="White"
Stroke = "Turquoise"
StrokeDashArray = "8"
StrokeThickness = "0.8"
Fill = "Transparent"
Configuration="{Binding mapper1}"/>
<lvc:LineSeries x:Name="lsValues"
Values="{Binding cvValues}"
PointGeometrySize="5"
PointForeground="Green"
Stroke = "Gray"
StrokeThickness = "1"
Fill = "Transparent"
Configuration="{Binding mapper1}"/>
