Dynamic Dialog Class

virtual UINT AddDlgControl(DLGITEMTEMPLATECONTROLS TypeControl, LPCTSTR lpszCaption, DWORD dwStyle, DWORD dwExtendedStyle, LPRECT pRect = NULL, void *pData = NULL, UINT nID = 0, void *pData2 = 0);<br />
<br />
virtual UINT AddDlgControl(LPCSTR lpszClassName, LPCTSTR lpszCaption, DWORD dwStyle, DWORD dwExtendedStyle, LPRECT pRect = NULL, void *pData = NULL, UINT nID = 0, void *pData2 = 0);<br />
<br />
virtual UINT AddSubclassedDlgControl(LPCSTR lpszClassName, LPCTSTR lpszCaption, DWORD dwStyle, DWORD dwExtendedStyle, LPRECT pRect = NULL, UINT nID = 0, void *pData2 = 0);

<br />
nRet = pDynDialogItemEx->InitDialogItem(TypeControl, dwStyle, dwExtendedStyle, pRect, lpszCaption, nID, FALSE, pData, pData2);<br />
<br />
nRet = pDynDialogItemEx->InitDialogItem(lpszClassName, dwStyle, dwExtendedStyle, pRect, lpszCaption, nID, FALSE, pData, pData2);<br />
<br />
nRet = pDynDialogItemEx->InitDialogItem(lpszClassName, dwStyle, dwExtendedStyle, pRect, lpszCaption, nID, TRUE, NULL, pData2);<br />

UINT InitDialogItem(DLGITEMTEMPLATECONTROLS TypeControl, DWORD dwStyle, DWORD dwExtendedStyle, LPRECT pRect, LPCTSTR lpszCaption, UINT nID = 0, BOOL bSubclassed = FALSE, void *pData = NULL, void *pData2 = NULL);<br />
<br />
UINT InitDialogItem(LPCSTR lpszClassName, DWORD dwStyle, DWORD dwExtendedStyle, LPRECT pRect, LPCTSTR lpszCaption, UINT nID = 0, BOOL bSubclassed = FALSE, void *pData = NULL, void *pData2 = NULL);

..<br />
.<br />
.<br />
CWnd::DoDataExchange(pDX);<br />
if(m_pData2 != NULL)<br />
{<br />
    switch(m_eTypeControl)<br />
    {<br />
        case COMBOBOX:<br />
        {    // m_pData2, it it's valid, points to a list of CString *<br />
            CList<CString *, CString *> *pListComboData = (CList<CString *, CString *> *)m_pData2;<br />
            POSITION posComboData = pListComboData->GetHeadPosition();<br />
            while(posComboData)<br />
            {<br />
                ((CComboBox *)this)->AddString(*pListComboData->GetNext(posComboData));<br />
            }<br />
            break;<br />
        }<br />
    default:<br />
        break;<br />
    }<br />
}

<br />
// For each combo box added, keep a note of the list created to hold the list of strings added to this list (so that it and its contents can be deallocated after use). <br />
CList<CList<CString *, CString *> *, CList<CString *, CString *> *> listComboBoxStringLists;<br />
<br />
// I will add just one combo box for this example, although this would ordinarily<br />
// be enclosed in some sort of decision-loop adding any number of combo-boxes....<br />
CList<CString *, CString *> *pListComboBoxStrings = new CList<CString *, CString *>;<br />
<br />
// Add some strings to this combo box.  Again this would normally be a varying<br />
// number of strings, different for each combo box.<br />
CString *pNewString1 = new CString(_T("String 1"));<br />
CString *pNewString2 = new CString(_T("String 2"));<br />
pListComboBoxStrings.AddTail(pNewString1);<br />
pListComboBoxStrings.AddTail(pNewString2);<br />
<br />
// And add the whole list to our list of lists so we can remove it after<br />
// closing the dialog....<br />
listComboBoxStringLists.AddTail(pListComboBoxStrings);<br />
<br />
dlg.AddDlgControl(_T("COMBOBOX"), _T(""), STYLE_COMBOBOX_DROPDOWN, EXSTYLE_COMBOBOX, NULL, NULL, 0, pListComboBoxStrings);<br />
<br />
..<br />
.<br />
// Open the dialog and once closed do whatever with the results.....I have not implemented this bit yet but Marcel's code shows how to do this.<br />
int nEditRtn = dlg.DoModal();<br />
if(nEditRtn == IDOK)<br />
{<br />
}<br />
<br />
// And finally deallocate all the allocated memory<br />
POSITION posCStringList = listComboBoxStringLists.GetHeadPosition();<br />
while(posCStringList)<br />
{<br />
	CList<CString *, CString *> *pListList = listComboBoxStringLists.GetNext(posCStringList);<br />
	POSITION posCString = pListList->GetHeadPosition();<br />
	while(posCString)<br />
	{<br />
		delete pListList->GetNext(posCString);<br />
	}<br />
	delete pListList;<br />
}<br />

class CDynDialogEx;<br />
typedef void (CALLBACK * CDynDialogExInitCBF)(CDynDialogEx * dlg);<br />
<br />
/////////////////////////////////////////////////////////////////////////////<br />
// CDynDialogEx dialog<br />
<br />
class CDynDialogEx : public CDialog<br />
{<br />
    // Construction<br />
public:<br />
    CDynDialogEx(CWnd * pParent = NULL, CDynDialogExInitCBF cbFunc = NULL);<br />
    ~CDynDialogEx();<br />
...<br />
...<br />
protected:<br />
...<br />
    CDynDialogExInitCBF m_cbFunc;<br />
}

CDynDialogEx::CDynDialogEx(CWnd * pParent, /*=NULL*/<br />
                           CDynDialogExInitCBF cbFunc /*=NULL*/) : CDialog()<br />
{<br />
...<br />
    m_cbFunc = cbFunc;<br />
...<br />
}<br />
<br />
...<br />
<br />
BOOL CDynDialogEx::OnInitDialog()<br />
{<br />
...<br />
    CDialog::OnInitDialog();<br />
    if (m_cbFunc != NULL)<br />
    {<br />
        m_cbFunc(this);<br />
    }<br />
    CenterWindow();<br />
...<br />
}

void CALLBACK CondBPCallback(CDynDialogEx * dlg)<br />
{<br />
    CComboBox * myCombo = (CComboBox *)dlg->GetDlgItem(IDC_MY_COMBOLISTBOX);<br />
    if (myCombo != NULL)<br />
    {<br />
        myCombo->AddString(str0);<br />
        myCombo->AddString(str1);<br />
        myCombo->AddString(str2);<br />
        myCombo->AddString(str3);<br />
        myCombo->AddString(str4);<br />
        myCombo->AddString(str5);<br />
        myCombo->AddString(str6);<br />
        myCombo->SetCurSel(3);<br />
    }<br />
}