C#. WPF. Problems with Chart Building

Question

In my WPF application for Chart Building I'm trying to use WinForms System.Windows.Forms.DataVisualization.Charting;

I have the following code:

private void build()
{
    for(int i = 0; i< boundData.Count; i++)
    {
        var chart = new Chart();
        var ser = new Series();

        ser.Name = "Series1";
        ser.ChartType = SeriesChartType.Bar;
        ser.Color = System.Drawing.Color.Blue;

        chart.Series.Add(ser);
        charts.Add(chart);

        for (int j = 0; j < boundData[i].Count; j++)
        {
            charts[i].Series["Series1"].Points.AddXY(j, boundData[i][j]);
        }
    }
        //Just for tesing Purposes
        charts[1].Invalidate();
        charts[1].SaveImage("met.png", ChartImageFormat.Png);
}

'boundData' has the following structure

List<List<int>>:
List<int> : [ 1,2,3,4,5,6,... ];
List<int> : [ 1,2,3,4,5,6, ... ];
...

According to debagger the 'Series' property has points.

What I want to do is to build a chart and save it as image. The image saved is just nothing (empty) Can anybody please point what I'm doing wrong or suggest another way of building charts?

Sean Beanland Sean Beanland · Accepted Answer · 2015-05-20T17:15:47

You need to add a ChartArea before it will plot

    private void build()
    {
        for (int i = 0; i < boundData.Count; i++)
        {
            var chart = new Chart();
            var ser = new Series();

            chart.ChartAreas.Add(new ChartArea("Area1"));

            ser.ChartArea = "Area1";
            ser.Name = "Series1";
            ser.ChartType = SeriesChartType.Bar;
            ser.Color = System.Drawing.Color.Blue; ;
            chart.Series.Add(ser);
            charts.Add(chart);

            for (int j = 0; j < boundData[i].Count; j++)
            {
                charts[i].Series["Series1"].Points.AddXY(j, boundData[i][j]);
            }
        }
        //Just for tesing Purposes
        charts[1].Invalidate();
        charts[1].SaveImage("met.png", ChartImageFormat.Png);
    }

C#. WPF. Problems with Chart Building

2 Answers