When I try to generate a PNG file Exporting RadPieChart it crash without any message. The files is generate with 0KB size. I don't need the graph in the screen I just need to export the PNG to programatically insert it in a RichTexBox.
Telerik.Windows.Controls.RadPieChart gr1 = new Telerik.Windows.Controls.RadPieChart();
gr1.Series.Add(new Telerik.Windows.Controls.ChartView.PieSeries());
foreach (KeyValuePair<string, int> g in dt1)
{
Telerik.Charting.PieDataPoint pA = new Telerik.Charting.PieDataPoint();
pA.Label = g.Key;
pA.Value = g.Value;
gr1.Series[0].DataPoints.Add(pA);
}
string filename1 = Path.GetTempFileName();
using (Stream fileStream = File.Open(filename1, FileMode.OpenOrCreate))
{ Telerik.Windows.Media.Imaging.ExportExtensions.ExportToImage(gr1, fileStream, new PngBitmapEncoder()); }
Any Advice will be welcome. Thanks in advance.