Printing OxyPlot example in WinForm

Here are some code snippets for Printing OxyPlot. 
The OxyPlot can be printed into a partial section in the cava.
There also including another way exporting the OxyPlot to PNG.

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        private void printPreviewBtn_Click(object sender, EventArgs e)
        {
            PrintPreviewDialog ppd = new PrintPreviewDialog();
            ppd.Document = reportPrintDocument;
            ppd.ShowDialog();
        }

        private void reportPrintDocument_PrintPage(object sender, PrintPageEventArgs e)
        {
            Graphics graphBoard = e.Graphics;
            float sectionWidth = e.PageBounds.Width;
            
            PointF strLocation = new PointF();
            strLocation.X = 50f;
            strLocation.Y = 50f;

            graphBoard.DrawString("Test Text",new Font("Tahoma", 16, FontStyle.Bold), Brushes.Black, strLocation);

            int width = (int)sectionWidth - 10;
            int height = 300;

            width = plot1.Width;
            height = plot1.Height;
            Bitmap bm = new Bitmap(width, height);
            plot1.DrawToBitmap(bm, new Rectangle(0,0,width,height));
            bm.Save("C:\\test.bmp");
            bm.Save("C:\\test.png", ImageFormat.Png);
            graphBoard.DrawImage(bm, new Point(50, 150));
        }
    }