Problem is that CR leaks memory, especially when using the viewer. I found this posting which describes the proper way to dispose of that memory:
In my code I am using the method described here:
http://www.codeproject.com/Articles/12308/Using-WinForms-controls-in-an-MFC-dialog<br>
Problem is that in C++, I cannot call ->Dispose(). It tells med to call the destructor ~ReportViewer instead.
Can someone provide an example how to properly end a report on screen so that all memory is released? This is what I have now and it has improved the leaks that used to be 13Mb so that it is now under 1Mb:
void CFloaterDlg::OnClose()
{
CrystalDecisions::CrystalReports::Engine::ReportDocument ^Report;
Report = (CrystalDecisions::CrystalReports::Engine::ReportDocument ^)m_Viewer->ReportSource;
Report->Close();
//
m_Viewer->ReportSource = nullptr;
m_Viewer->~CrystalReportViewer();
//delete m_Viewer;
//
GC::Collect();
GC::WaitForPendingFinalizers();
GC::Collect();
//
//
CDialog::OnClose();
//
m_Viewer.DestroyWindow();
DestroyWindow();
}
Question is how and when to destroy the underlying ReportDocument. Does the viewer hold a copy of the data? Ie can the ReportDocument be destroyed before the viewer is?