CXTPControlComboBox and Sorting

Here fix:

class CControlSortedComboBoxList : public CXTPControlComboBoxList
{
 DECLARE_XTP_COMMANDBAR(CControlSortedComboBoxList);
public:

 virtual void CreateListBox()
 {
  CreateEx(WS_EX_STATICEDGE | WS_EX_TOOLWINDOW, _T("LISTBOX"), _T(""),
   LBS_SORT | WS_POPUP | WS_VSCROLL | WS_BORDER | WS_CLIPCHILDREN, CRect(0, 0, 0, 0), 0, 0);
 }

};

class CControlSortedComboBox: public CXTPControlComboBox
{
 DECLARE_XTP_CONTROL(CControlSortedComboBox)
public:

 CControlSortedComboBox()
 {
  if (m_pCommandBar)
  {
   m_pCommandBar->InternalRelease();
  }

  m_pCommandBar = new CControlSortedComboBoxList();
  ((CControlSortedComboBoxList*)m_pCommandBar)-> ;CreateListBox();
 }
};

...

IMPLEMENT_XTP_CONTROL(CControlSortedComboBox, CXTPControlComboBox)
IMPLEMENT_XTP_COMMANDBAR(CControlSortedComboBoxList, CXTPControlComboBoxList)

...

Usage:

   CControlSortedComboBox* pComboFind = new CControlSortedComboBox;

   pComboFind->SetDropDownListStyle();
   pComboFind->SetEditHint(_T("Click to find string"));

   pComboFind->AddString(_T("Line1"));
   pComboFind->AddString(_T("Line3"));
   pComboFind->AddString(_T("Line2"));

   pComboFind->SetWidth(150);
   pComboFind->SetCaption(_T("Find"));
   pComboFind->SetStyle(xtpComboLabel);

   lpCreateControl->pControl = pComboFind;
   return TRUE;

Added for next, release.

To prevent fixing your application for next release,

I recommend change it back and to add:

void ModifyListBoxStyle(DWORD dwRemove, DWORD dwAdd)

void CXTPControlComboBox::ModifyListBoxStyle(DWORD dwRemove, DWORD dwAdd)
{
 if (IsValidList())
 { 
  CXTPControlComboBoxList* pComboBoxList = ((CXTPControlComboBoxList*)m_pCommandBar);
  
  pComboBoxList->m_dwStyle |= dwAdd;
  pComboBoxList->m_dwStyle &= ~dwRemove;

  pComboBoxList->DestroyWindow();
  pComboBoxList->CreateListBox();
 }
}

And to fix CreateListBox as

void CXTPControlComboBoxList::CreateListBox()
{
 CreateEx(WS_EX_STATICEDGE | WS_EX_TOOLWINDOW, _T("LISTBOX"), _T(""),
  WS_POPUP | WS_VSCROLL | WS_BORDER | WS_CLIPCHILDREN | m_dwStyle, CRect(0, 0, 0, 0), 0, 0);
}

Usage:

   CXTPControlComboBox* pComboFind = (CXTPControlComboBox*)CXTPControlComboBox::CreateObject();
  pComboFind->ModifyListBoxStyle(0, LBS_SORT);

   pComboFind->SetDropDownListStyle();
   pComboFind->SetEditHint(_T("Click to find string"));

   pComboFind->AddString(_T("Line1"));
   pComboFind->AddString(_T("Line3"));
   pComboFind->AddString(_T("Line2"));