How to load a tree view with a large XML file (Pocket PC version of Frank Le's program)

// CETreeViewView.cpp : implementation of the CCETreeViewView class
//

#include "stdafx.h"
#include "CETreeView.h"

#include "CETreeViewDoc.h"
#include "CETreeViewView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CCETreeViewView

IMPLEMENT_DYNCREATE(CCETreeViewView, CXmlTreeView)

BEGIN_MESSAGE_MAP(CCETreeViewView, CXmlTreeView)
	//{{AFX_MSG_MAP(CCETreeViewView)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCETreeViewView construction/destruction

CCETreeViewView::CCETreeViewView()
{
	// TODO: add construction code here

}

CCETreeViewView::~CCETreeViewView()
{
}

BOOL CCETreeViewView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CXmlTreeView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CCETreeViewView drawing

void CCETreeViewView::OnDraw(CDC* pDC)
{
	CCETreeViewDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	// TODO: add draw code for native data here
}

void CCETreeViewView::OnInitialUpdate()
{
	CXmlTreeView::OnInitialUpdate();

	LPCTSTR lpszPathName;

 //   CCETreeViewView* pView = CCETreeViewView::GetView();

}

/////////////////////////////////////////////////////////////////////////////
// CCETreeViewView diagnostics

#ifdef _DEBUG
void CCETreeViewView::AssertValid() const
{
	CXmlTreeView::AssertValid();
}

void CCETreeViewView::Dump(CDumpContext& dc) const
{
	CXmlTreeView::Dump(dc);
}

CCETreeViewDoc* CCETreeViewView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCETreeViewDoc)));
	return (CCETreeViewDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CCETreeViewView message handlers
CCETreeViewView* CCETreeViewView::GetView()
{
    CFrameWnd * pFrame = (CFrameWnd *)(AfxGetApp()->m_pMainWnd);
    
    CView * pView = pFrame->GetActiveView();
    
    if ( !pView )
        return NULL;
    
    // Fail if view is of wrong kind
    // (this could occur with splitter windows, or additional
    // views on a single document
    if ( ! pView->IsKindOf( RUNTIME_CLASS(CCETreeViewView) ) )
        return NULL;
    
    return (CCETreeViewView *) pView;
}