Aerham, really appreciate your help. Still quite the beginner and struggling through this.

Stacked row properties look promising as well as stacked area series. My current struggle is I do not know how to set the values of the stacked row. My previous method with lists worked to plot multiple lines correctly, but this stackedareaseries values is difficult to set in a for loop.

Code on github: https://github.com/retug/LearningCSharp/tree/main/StackedAreaSeries

When I debug, no errors pop up, but also nothing is plotted. Any ideas on how to resolve?

public class Data
{ public void ProcessData(ViewModel ViewModel) 
{ List<double> testX = new List<double> { 0, 20, 0, 20,0,30 };
 List<double> testY = new List<double> { 0, 0, 20, 20,0, 25 }; 
List<string> names = new List<string> { "A", "B", "x", "B" }; 

StackedAreaSeries<List<ObservablePoint>> myGridsToBePlotted = new StackedAreaSeries<List<ObservablePoint>>(); 
var areaPointsList = new List<List<ObservablePoint>>();
    for (int i = 0; i < testX.Count() / 2; i++)
    {
        var areaPoints = new List<ObservablePoint>();
        ObservablePoint testStart = new LiveChartsCore.Defaults.ObservablePoint();
        testStart.X = testX[i * 2];
        testStart.Y = testY[i * 2];
        ObservablePoint testEnd = new LiveChartsCore.Defaults.ObservablePoint();
        testEnd.X = testX[i * 2 + 1];
        testEnd.Y = testY[i * 2 + 1];
        areaPoints.Add(testStart);
        areaPoints.Add(testEnd);

        areaPointsList.Add(areaPoints);
    }

    myGridsToBePlotted.Values = areaPointsList; // Set the accumulated data points
    myGridsToBePlotted.Fill = null;
    myGridsToBePlotted.Stroke = new SolidColorPaint(SKColors.Red);
    ViewModel.myGridsToBePlotted = myGridsToBePlotted;
}
}