Paginate and Print MSFlexGrid Content the Easy Way

Environment: VC6

MSFlexGrid is a useful control to present data in a Grid, but what happens when this content has to be printed? Here I present a class, PrintGrid, that paginates and prints the grid content. It uses a second Grid control and must be additionally inserted in your CFormView dialog resource or in your dialog.

The instructions are as follows:

• Add a second MSFlexGrid control to your form or dialog.
• Change the member in your view or dialog class from CMSFlexGrid to CPrintGrid* m_pxPrintGrid.
• Change the DDX command: DDX_Control(pDX, IDC_MSFLEXGRID2, *m_pxPrintGrid).
• Instantiate the control in your constructor: m_pxPrintGrid = new CPrintGrid().
• Override the operation OnPreparePrinting and OnPrint as follows:

BOOL MyFormView::OnPreparePrinting(CPrintInfo* pInfo)
{
  // Calculate pages for all grid data
  CPrintDialog xPrintDlg(FALSE);
  CDC xDC;
  xPrintDlg.GetDefaults();
  xDC.Attach(xPrintDlg.GetPrinterDC());
  m_pxPrintGrid->Paginate(&xDC, m_pxGrid);
  xDC.Detach();

  // Update the number of pages according to DC size
  pInfo->m_nNumPreviewPages = m_pxPrintGrid->GetNumPages();
  pInfo->SetMinPage(1);
  pInfo->SetMaxPage(m_pxPrintGrid->GetNumPages());

  // Display printer setup dialog and initialize CPrintInfo
  if (!DoPreparePrinting(pInfo))
  {
    return FALSE;
  }
  // call parent
  return CFormView::OnPreparePrinting(pInfo);
}

void MyFormView::OnPrint(CDC* pDC, CPrintInfo* pInfo)
{
  CString sTitle;
  sTitle = "My App title";
  m_pxPrintGrid->PrintPage(pDC, pInfo->m_nCurPage, m_pxGrid,
                           sTitle);
  // Call parent
  CFormView::OnPrint(pDC, pInfo);
}

Enjoy it! I hope it will be useful.

Downloads

Download Class Code: PrintGrid.zip - 4 Kb