C / C++ / MFC

// CMyObject:public CObject to know what class typ is in vector
vector<CMyObject>VectorObject;
CMyObject myOb;
myOb.csName = "foo";
myOb.csIindex.Format("%d", iIndex);
// etc....
VectorObject.push_back(myOb);

// here is where i call my sortfunktion:
   if((GetStyle() & LVS_OWNERDATA)==0)  // this is my line, check if LVS_OWNERDATA is set, if not call VERIFY                                     
	VERIFY( CListCtrl::SortItems( CompareFunction, reinterpret_cast<DWORD>( this ) ) ); // original line
   else // here my changes
	{// if yes, go here, first printout only to see if all infos are here before sorting, yes!
		for_each(VectorResults.begin(), VectorResults.end(), print); // no errors?
		sort(VectorResults.begin(), VectorResults.end(),compare_vector);
		// show all sortet data, thi is ok to, no errors!?
		for_each(VectorResults.begin(), VectorResults.end(), print);
	}
// but here: :(
int compare_vector(const CMyObject& v1, const CMyObject& v2)
{
// here is problem: there is no problem so long i dont come to end!
// step by step i can see that v2.csIndex is NULL, is that the end of VectorResult???
	return lstrcmp(v1.csIndex, v2.csIndex); // 
}