How to print Usercontrol with scichartsurface and ohter wpf controls to PDF?

Hi,

I’m sorry for the late reply.
We discussed your inquiry.

If you want to print a View that was rendered, you could use WPF PrintDialog API. Here you can find more details:
PrintDialog.PrintVisual(Visual, String) Method (System.Windows.Controls) _ Microsoft Learn

However, if the View wasn’t rendered before you initialize printing this approach won’t work.
The only way to print the View would be exporting SciChartSurface to a bitmap using SciChart Export API, then inserting this Bitmap onto the View as an Image.

Unfortunately, there isn’t any easier solution for this case out of the box at the moment.

Kind regards,
Lex,
SciChart Technical Support Engineer

Thank you for your response.
I tried your suggestion and I export the SciChartSurface to a bitmap which works fine. However, there is a memory leak in the ExportToBitmapSource API. Below you can see my code. If I remove the line ” pdfview.cChart.SciChart.ExportToBitmapSource(useXamlRenderSurface, exportedSize);” then there is no memory leak. Am I doing something wrong or is this caused due to the API?

MemoryStream lMemoryStream = new MemoryStream();
Package package = Package.Open(lMemoryStream, FileMode.Create);
XpsDocument doc = new XpsDocument(package);
XpsDocumentWriter writer = XpsDocument.CreateXpsDocumentWriter(doc);
PDFView pdfview = new PDFView();
pdfview.DataContext = this;

pdfview.Arrange(new Rect(0, 0, 1800, 1080));

bool useXamlRenderSurface = false;
Size? exportedSize = null;

// Export to BitmapSource at size
imgSource = pdfview.cChart.SciChart.ExportToBitmapSource(useXamlRenderSurface, exportedSize);

//dispose to avoid memory leak
((XyDataSeries<double, double>)pdfview.cChart.SciChart.RenderableSeries[0].DataSeries).Clear();
((XyDataSeries<double, double>)pdfview.cChart.SciChart.RenderableSeries[1].DataSeries).Clear();
((XyDataSeries<double, double>)pdfview.cChart.SciChart.RenderableSeries[2].DataSeries).Clear();
((XyDataSeries<double, double>)pdfview.cChart.SciChart.RenderableSeries[3].DataSeries).Clear();
((XyDataSeries<double, double>)pdfview.cChart.SciChart.RenderableSeries[4].DataSeries).Clear();
pdfview.cChart.SciChart.RenderableSeries.Clear();
pdfview.cChart.SciChart.RenderableSeries = null;
pdfview.cChart.SciChart.Dispose();
pdfview.cChart.SciChart = null;
pdfview.cChart = null;
pdfview = null;
imgSource = null;

You can download a reproduction from here: [redacted]

Click multiple times on the Print button to see the memory go up.