Errors in MFC dialog application

Question

I am learning MFC Dialog Applications and as the first try I did the tutorial explained here

I am using visual Studio 2010 but when I run this I get errors as
error C2664: 'DDX_Control' : cannot convert parameter 3 from 'CString' to 'CWnd &' 1>\\documents\\visual studio 2010\\projects\\mfc\\mfc\\mfcdlg.cpp(75): error C2065: 'IDC_BUTTON1' : undeclared identifier 1>\\documents\\visual studio 2010\\projects\\mfc\\mfc\\mfcdlg.cpp(75): error C2065: 'IDC_BUTTON1' : undeclared identifier 1>\\documents\\visual studio 2010\\projects\\mfc\\mfc\\mfcdlg.cpp(76): error C2065: 'IDC_COMBO1' : undeclared identifier 1>\\documents\\visual studio 2010\\projects\\mfc\\mfc\\mfcdlg.cpp(76): error C2065: 'IDC_COMBO1' : undeclared identifier 1>

I did exactly as mentioned in the note.

void CMFCDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialogEx::DoDataExchange(pDX);
    DDX_Text(pDX, IDC_FIRSTNAME, m_strFirstName);
    DDX_Text(pDX, IDC_LASTNAME, m_strLastName);
    DDX_Control(pDX, IDC_TITLE, m_strTiltle);
    DDX_LBString(pDX, IDC_NAMELIST, m_strFullName);
    DDX_Control(pDX, IDC_NAMELIST, m_NameList);
}  

As this is my first time doing anything in MFC applications I have no idea what went wrong.Can someone please help me to understand what is wrong?

Answer 1

I am not very sure you followed the steps in the tutorial correctly, you should not get these errors if you had...

C2664 Error: change DDX_Control(pDX, IDC_TITLE, m_strTiltle); to DDX_Text(pDX, IDC_TITLE, m_strTiltle);

C2065 errors: The tutorial does not contain IDC_BUTTON1 / IDC_COMBO1 , it mentions a IDC_ADD button and a IDC_TITLE combo box.

Answer 2

m_strTitle is a value of type CString , in your code m_strTitle is define as a control. For the rest, you maybe have rename or delete identifiers, use appropriate.