FIX: Error C2065: 'DDX_FieldCBIndex' : undeclared identifier (132396)

   void CMyRecordView::DoDataExchange(CDataExchange* pDX)
   {
      ...
      //{{AFX_DATA_MAP(CMyRecordView)
      DDX_FieldCBIndex(pDX, IDC_COMBO1, m_pSet->m_id, m_pSet);
      //}}AFX_DATA_MAP
   }
				

MORE INFORMATION

When implementing CRecordView and CRecordSet classes, ClassWizard completes two data exchanges. Data is exchanged between the record view control and the record view data members and between it and the record set data members, which are linked to the database fields.

                  RFX                          DDX

    Data          Record                       Dynamic

    Source  <---- Field   --->   record   <--- Data --->   controls
    record        Exchange       view          Exchange
    set
				

For record view data members that have a corresponding database field, the DDX_Fieldxxx set of functions are used to perform DDX. For those members without corresponding database fields, the DDX_xxx set of functions are used. For every DDX_xxx function, there is typically a corresponding DDX_Fieldxxx function.

The corresponding data exchange function for DDX_FieldCBIndex() is DDX_CBIndex(), which obtains the index position of the item in the listbox portion of the combobox. This information is meaningless outside of the combo box unless it corresponds to a predefined string. If this is the case, then the data member should be bound to an edit control.