Unable to generate PDF Preview

Unable to generate PDF Preview

Posted by: mayur.purandare on 26 May 2021, 1:42 am EST

• 

  mayur.purandare

  • Post Options:
  • Link
    Copy
  • Jump To Answer

  Posted 26 May 2021, 1:42 am EST

  Hello,
  
  Facing issue in PDF Generation and PDF Preview while executing following code.

  C1PdfDocument c1PdfDocument = GetC1PDFDocument();
  C1PrintDocument c1PrintDocument = GetC1PrintDocument();
  RenderTable renderTable = GetRenderTable(); // some data is added (contains images)
  c1PrintDocument.Body.Children.Add(renderTable);
  c1PrintDocument.Generate();
  foreach (C1Page page in c1PrintDocument.Pages)
  {
      c1PdfDocument.NewPage();
      img = page.AsMetafile(); //Exception
      c1PdfDocument.DrawImage(img, c1PdfDocument.PageRectangle);
  }
  c1PdfDocument.Save(SavePath);
  

  Component used: C1.WPF.C1Report.4.dll [Version: 4.0.20203.457]

  Stacktrace is in the attachment.

• 

  mayur.purandare

  • Post Options:
  • Link
    Copy

  Posted 26 May 2021, 1:49 am EST

  Adding the Stacktrace in the comments:
  
  ************************************************************** Exception Stack **************************************************************

  Parameter is not valid. at System.Drawing.Graphics.set_PixelOffsetMode(PixelOffsetMode value)
  
  at C1.C1Preview.GraphicsUtils.DrawImage(Graphics graphics, Image image, RectangleF drawRect, RectangleF clipRect, IImageAlign align, IMetafilePainter metafilePainter, Boolean useClassicDrawMethod)
  
  at #w3i.#VOj.Draw(Image #gjc, ImageAlign #wrc, Graphics #0p, Rectangle #Mi, Rectangle #TGj, Boolean #TOj, Boolean #qgc, Boolean #UOj)
  
  at C1.C1Preview.RenderGraphicsFragment.InternalDraw(Graphics graphics, DrawParams drawParams)
  
  at C1.C1Preview.RenderFragment.DrawContent(Graphics graphics, DrawParams dp)
  
  at C1.C1Preview.RenderFragment.#1Lj(Graphics #0p, DrawParams #Dr)
  
  at C1.C1Preview.RenderFragment.Draw(Graphics graphics, Rectangle boundsPx, Rectangle parentContentBoundsPx, Boolean renderChildren, PageDrawParams pdp)
  
  at C1.C1Preview.RenderTableFragment.#6Gj(Object #hEj, RenderFragment #qKf, Rectangle #7Gj, Rectangle #8Gj, Boolean #9Gj, Boolean #aHj, Boolean #bHj)
  
  at C1.C1Preview.RenderTableFragment.#eHj(#A4k #fHj, Object #hEj, #w4k #ZKf, Rectangle #gHj, Single #5lb, Single #6lb, Boolean #9Gj, Boolean #bHj)
  
  at C1.C1Preview.RenderTableFragment.#hHj(Single #5lb, Single #6lb, DrawParams #iHj, #x4k #jHj, #A4k #kHj, #z4k #lHj, #y4k #CGj, Object #mHj)
  
  at C1.C1Preview.RenderTableFragment.InternalDraw(Graphics graphics, DrawParams drawParams)
  
  at C1.C1Preview.RenderFragment.DrawContent(Graphics graphics, DrawParams dp)
  
  at C1.C1Preview.RenderFragment.#1Lj(Graphics #0p, DrawParams #Dr)
  
  at C1.C1Preview.RenderFragment.Draw(Graphics graphics, Rectangle boundsPx, Rectangle parentContentBoundsPx, Boolean renderChildren, PageDrawParams pdp)
  
  at C1.C1Preview.C1Page.Draw(Graphics graphics, PageDrawParams pdp)
  
  at C1.C1Preview.C1Page.#jKj(Graphics #jbj, PageDrawParams #S8i)
  
  at C1.C1Preview.C1Page.AsMetafile(Graphics referenceGraphics, EmfType emfType, Boolean whiten, Boolean renderInputControls, SmoothingMode smoothingMode)
  
  at C1.C1Preview.C1Page.AsMetafile(EmfType emfType, Boolean whiten)
  
  at C1.C1Preview.C1Page.AsMetafile()

  ************************************************************** Exception Stack **************************************************************

• 

  sonu.singh

  

  • Post Options:
  • Link
    Copy

  Posted 30 May 2021, 6:39 pm EST

  Hi,
  
  I found, you are passing metafile as a parameter of DrawImage method. However, it takes as WriteableBitmap.
  
  Please check below link:
  
  http://helpcentral.componentone.com/nethelp/C1PDFWPF/C1.Silverlight.Pdf.5~C1.Silverlight.Pdf.C1PdfDocument~DrawImage(WriteableBitmap,Rect).html

  You can use below code for better understanding:

  private void Button_Click(object sender, RoutedEventArgs e)
          {
              C1PdfDocument c1PdfDocument = new C1PdfDocument(PaperKind.A4);
              C1PrintDocument c1PrintDocument1 = GetPrintDocumentWithTable();
              c1PrintDocument1.Generate();
              foreach (C1Page page in c1PrintDocument1.Pages)
              {
                  if (page.Index > 0)
                  {
                      c1PdfDocument.NewPage();
                  }
                  Metafile img = page.AsMetafile(); //Exception
                  Stream stream = new MemoryStream();
                  img.Save(stream, ImageFormat.Bmp);
                  var bitmap = new BitmapImage();
                  bitmap.BeginInit();
                  bitmap.StreamSource = stream;
                  bitmap.EndInit();
                  bitmap.Freeze();
                  var wb = new WriteableBitmap(bitmap);
                  c1PdfDocument.DrawImage(wb, c1PdfDocument.PageRectangle);
              }
              string filename = "test" + DateTime.Now.Ticks + ".pdf";
              c1PdfDocument.Save(filename);
              Process.Start(filename);
          }
  
          C1PrintDocument GetPrintDocumentWithTable()
          {
              C1PrintDocument c1PrintDocument1 = new C1PrintDocument();
              // Make a table.    
              C1.C1Preview.RenderTable table = new C1.C1Preview.RenderTable(c1PrintDocument1);
              table.Style.GridLines.All = new C1.C1Preview.LineDef(Colors.DarkGray);
              // Add 3 rows.    
              const int r = 3;
  
              // Add 3 columns.    
              const int c = 3;
  
              for (int row = 0; row < r; ++row)
              {
                  for (int col = 0; col < c; ++col)
                  {
                      if (!(row == 1 && col == 1) && !(row == 1 && col == 2))
                      {
                          C1.C1Preview.RenderText celltext = new C1.C1Preview.RenderText(c1PrintDocument1);
                          celltext.Text = string.Format("Cell ({0}, {1})", row, col);
  
                          // Add cells with text.    
                          table.Cells[row, col].RenderObject = celltext;
                      }
                  }
              }
              c1PrintDocument1.Body.Children.Add(table);
              return c1PrintDocument1;
          }
  

  Hope, this will solve your issue. If this does not solve your issue then please share a small sample application with us, so that we can assist you accordingly.

  Thanks,