If you use MFC the GetSelectionMark() returns the zero-based selection mark, or -1 if there is no selection mark. I think your CListCtrl has to be in Report-mode. Arjan.

THANKS. I GOT IT.

I fixed the problem. The assertion failure is thrown when calling DoDataExchange(); CDialog::OnInitialUpdate() calling CDialog::UpdateData(FALSE) calling CDialog::DoDataExchange(..). Actually I had an button control in the dialog and an corresponding button variable in the Dialog class and hence the DoDataExchange() had an line containing button variable. Then I removed the Button variable from the resource. But didnot remove from the code. I tried to remove the button variable from the Dialogs class and DoDataExchange() and thus it worked. Thanks for your help. Sorry for the trouble.

no, there is no function in CDialog for accessing a CDocument. you either have to give your dialog a pointer (or reference) to your CDoc or copy data to and from the dialog using member functions of the dialog (or variables). void CMyDoc::OnX() { CMyDialog dlg; dlg.m_data = m_data; if (dlg.DoModal()==IDOK) { m_data = dlg.m_data; } } or: void CMyDoc::OnX() { CMyDialog dlg; dlg.m_pDoc = this; dlg.DoModal(); } ... class CMyDialog { ... public: CMyDoc *m_pDoc; } -c "Kate said / The flowers of intolerance and hatred / Are blooimg kind of early this year / Someone's been watering them. -- Robyn Hitchcock, Devil's Radio

The same principle applies: Something like: void CMyView::DoSomething() { CMyDialog dlg( this ); for ( each value in database ) { CString strValue = GetValueFromDataBase(); dlg.AddValue( strValue ); } if ( IDOK == dlg.DoModal() ) { // Do something with it } else { // Panic / shoot user } } class CMyDialog : public CDialog { // All the usual stuff public: void AddValue(const CString& strValue); private: CStringList m_lstValues; }; void CMyDialog::AddValue(const CString& strValue) { m_lstValues.AddTail( strValue ); } BOOL CMyDialog::OnInitDialog() { CDialog::OnInitDialog(); // Add the values for ( POSITION pos = m_lstValues.GetHeadPosition() ; pos != NULL ; ) m_lstCtrl.AddString( m_lstValues.GetNext( pos ) ); return TRUE; } Dave

I'm having the same problem. Please let me know if you have found a solution. It's mostly related to trying to add data to a listbox which is not visible to current class. Try adding the data from the CListBox's owner class and it should work. Try it from an outside class it throws an ASSERT. Let me know please.

A lot depends on what kind of database access you are using and what kind of database you are accessing. ADO is the easiest method and is well documented with examples at http://www.codeproject.com/database/ Michael Programming is great. First they pay you to introduce bugs into software. Then they pay you to remove them again.

In the pdwEffect return value for your Drop Event handler, return DROPEFFECT_COPY and this will indicate to the source to make a copy of the data rather than moving the data. It is actually up to the source as to what it wants to do though. Build a man a fire, and he will be warm for a day Light a man on fire, and he will be warm for the rest of his life!

You need to use OleInitialize on the thread that is calling the register function rather than CoInitialize. OLE must be initalized in order for you to use Drag and Drop. Build a man a fire, and he will be warm for a day Light a man on fire, and he will be warm for the rest of his life!

How about http://www.codeproject.com/miscctrl/gridctrl.asp

i changed the iterator initialzation, and changed the order of the include files, and the code worked... #include #include #include using namespace std; main() { string alpha[4] = {"nava", "dana", "lakshmi", "pavi"}; deque ids1; for (int i =0; i<4; i++) { ids1.push_back(alpha[i]); } deque::iterator id_iter1 = ids1.begin(); for (; id_iter1 != ids1.end(); id_iter1++ ) cout << *id_iter1 << "\n"; }

Check out this article: http://www.codeproject.com/listctrl/dragtest.asp[^]

Replace sect.Open(NULL, _T( "Select * from Section WHERE sect.m_strFilter" )); With sect.Open(NULL, _T(CString("Select * from Section WHERE ") + sect.m_strFilter ));

Hello! You cannot call the 'GetDocument()' function of a view before you call 'CRecordView::OnInitialUpdate()'. Your program crashes because GetDocument() does not know what to return. Let me quickly explain. The CRecordView::OnInitialUpdate function hooks your view into the document, so that you can always retreive the associated document with GetDocument(). If you try and call GetDocument() before that, it will probably return NULL, giving you an 'Unhandled exception' (trying to access something in a NULL pointer). So, you code should look something like this (minus the comments, of course, which just explain what I'm doing): void CMgen1View::OnInitialUpdate() { //Always call this before calling GetDocument: CRecordView::OnInitialUpdate(); //Now the view is hooked to the document, so get the set: m\_pSet = GetDocument()->m\_mgen1Set; LoadListbox(); } Hope that helps! Sincerely, Alexander Wiseman Est melior esse quam videri It is better to be than to seem

When I run it, I get the messagebox error and when the dialog appears, I donot have the fileds loaded? I have the code where I have tried to load the field.. void CMgen1View::OnInitialUpdate() { m_pSet = &GetDocument()->m_mgen1Set; CRecordView::OnInitialUpdate(); LoadListbox(); //CALLING HERE } void CMgen1View::LoadListbox() { CMgen1Doc* pDoc = GetDocument(); CListBox* pLB = (CListBox*) GetDlgItem(IDC_LIST1); CSectionSet sect(&pDoc->m_database); sect.Open(); while(!sect.IsEOF()) { pLB->AddString(sect.m_CourseID); sect.MoveNext(); } }

Is this what you're looking for? link[^]

in OnOK, call UpdateData, first. this will send all the data through the DDX functions and into whatever variables you've attached to the controls. then you can look at the member variables and do your other validation. -c WWJD? JWRTFM.    found on /. image effects!