Export To PDF locks UI Thread

[Phil]

I am exporting a GridView of about 1500 rows and 20 columns to Excel and PDF.  I do both in a BackgroundWorker Thread.  The Excel export works fantastic and does not lock my UI.  However, the PDF export takes significantly longer and locks my UI thread even though I am running it from a different thread.  

What gives?

This is in my DoWork() method.  It 'hangs' on the "RunExport()" line.

ExportToPDF pdfExporter = new ExportToPDF(uxResultsView);
    pdfExporter.FileExtension = "pdf";
    pdfExporter.PageTitle = "Provider Search Results";
    pdfExporter.FitToPageWidth = true;
    pdfExporter.ExportVisualSettings = true;

    pdfExporter.RunExport(fileName);

[Svett]

Hi John,

Presently, the PDF export uses visual elements created by the RadGridView. The visual elements are owned by the UI thread. In this case, the PDF export performs some of the operations in the UI thread event thought it is running in background worker.

I will consider your scenario as feature request. I logged it in our public issue tracking system.

I updated your Telerik points. 

All the best,
Svett
the Telerik team