Textbox reload for print generates memory error

Question

Post Author: oaksong
CA Forum: .NET
I have a subreport which has a lot of textboxes. It's the cover sheet to the report. On the postback for the initial submit I load all the textboxes and the report displays.When I click the print icon on the viewer this fires another post back which attempts to reload the subreport and this generates a memory error on the textbox. The error says I'm attempting to read or write protected memory. I can't understand why a textbox I've already written to would suddenly be protected memory. Has anyone encountered the problem? Is there a way to get the print without rerunning the entire report?The only solution I can see is to write a really ugly sql statement with all the info for the text boxes, there are about 20 of them, tacked onto the front of the sql output.I had intended to use this subreport as the front page for over 25 different reports. This means that I will have to replicate the cover sheet 25 times, which increases the maintenance headache exponentially and I really don't want to go there. tiaChris

Answer 1

hi,
when am print preview the JTable containg 1000 of records am getting OutOfMemoryError. its working fine for 300 or 400 records..
I am getting the memory error from the following lines..
          try
               System.gc();
               while (true)
                    BufferedImage img = new BufferedImage(m_wPage,
                         m_hPage, BufferedImage.TYPE_INT_RGB);
                    Graphics g = img.getGraphics();
                    g.setColor(Color.white);
                    g.fillRect(0, 0, m_wPage, m_hPage);
                    if (target.print(g, pageFormat, pageIndex) !=Printable.PAGE_EXISTS)
                         break;
                    PagePreview pp = new PagePreview(w, h, img);
                    preview.add(new Integer(pageIndex).toString(),pp);
                    pageIndex++;
          catch (OutOfMemoryError om)
               log.setEditable(true);
               log.setText("Image is too big that run out of memory... \n"+om.toString());
               log.setEditable(false);
               ob[0] = mlog;
               JOptionPane.showMessageDialog(parent, ob , "Error", JOptionPane.ERROR_MESSAGE);
          catch (PrinterException e)
               e.printStackTrace();
               System.err.println("Printing error: "+e.toString());
          }where PagePreview and preview are the panels...
i hav added the buffered image to the PagePreview panel and PagePreview panel to preview panel..
i would very thankfull if any one could give a solution for this.
Regards
Suresh
Message was edited by:
Suresh22