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Forums » Prof-UIS General Discussion » CExtComboBox problem :( Collapse All
Subject Author Date
nguyen hieu Mar 26, 2008 - 10:43 PM

i have create a CExtComboBox m_cbKeyword in m_wndFilterBar :


But there r 2 problem i met:

1. if i don’t insert   ON_COMMAND(ID_KEYWORD_COMBO_BOX, OnKeywordComboBox) in MessageMap,so CExtComboBox was disabled;

2.if i insert ON_COMMAND(ID_KEYWORD_COMBO_BOX, OnKeywordComboBox),it enable,but when i type something in,ex:a,b,c,so immediately it crash.

Someone can help me.

Best Regards,


Timo Stripf May 26, 2008 - 2:30 AM

I have the same Problem. You can reproduce this, if you compile the UNICODE MFC DLL version of Prof-UIS Studio and then you type some characters into the searchbox which is located in the toolbar.

Sorciere vn Apr 6, 2008 - 7:45 PM

sorry because i don’t talk more details .

Error occurs at ASSERT(pEdit != NULL),after CEdit * pEdit = (CEdit*)GetInnerEditCtrl(); command.I am using prof-UIS proffessional v2.82 & use WinXP 32-bit.Also e build in ANSI debug mode.




Technical Support Apr 10, 2008 - 7:28 AM

Unfortunately we still cannot repeat the crash and say what’s wrong. Is the crash exist in some of our samples? Or would you send us your project?

Sorciere vn Apr 2, 2008 - 9:17 PM

First of all,thanks 4 ur reply

    about question 2,i used Prof-UIS professional v2.82,and i create a Combo Box through question 1.It’s Ok in release mode,however it crash when i type something in combo box in debug mode,here is call stack when it occurs :

NTDLL! 7c901230()

_CrtDbgReport(int 2, const char * 0x00d18ac4 THIS_FILE, int 2426, const char * 0x00000000, const char * 0x00000000) line 353

AfxAssertFailedLine(const char * 0x00d18ac4 THIS_FILE, int 2426) line 39 + 20 bytes

CExtComboBoxBase::WindowProc(unsigned int 1148, unsigned int 1, long 0) line 2426 + 21 bytes

CExtComboBox::WindowProc(unsigned int 1148, unsigned int 1, long 0) line 3875

AfxCallWndProc(CWnd * 0x0033cc68 {CExtComboBox hWnd=???}, HWND__ * 0x00050d5a, unsigned int 1148, unsigned int 1, long 0) line 215 + 26 bytes

AfxWndProc(HWND__ * 0x00050d5a, unsigned int 1148, unsigned int 1, long 0) line 379

AfxWndProcBase(HWND__ * 0x00050d5a, unsigned int 1148, unsigned int 1, long 0) line 220 + 21 bytes

USER32! 77d48709()

USER32! 77d487eb()

USER32! 77d489a5()

USER32! 77d489e8()

USER32! 77d6ea3b()

USER32! 77d5688a()

The related code is :

            CEdit * pEdit = (CEdit*)GetInnerEditCtrl();

            ASSERT( pEdit != NULL );

            ASSERT_VALID( pEdit );

            if( pEdit != NULL )

                pEdit->SetRedraw( FALSE );

            if(        m_wndPopupListBox.m_hWnd != NULL

                &&    ::IsWindow( m_wndPopupListBox.m_hWnd )



                CListBox * pListBox = ( CListBox * ) &m_wndPopupListBox;

                pListBox->SetCurSel( nResult );



Can u tell me Why ,and how i edit ?

Best regards,


Technical Support Apr 5, 2008 - 9:53 AM

We need more details. At which line exactly the ASSERT occurs? What Prof-UIS configuration you are using, Unicode, ANSI, MBCS, 32-bit, 64-bit? Your OS?

Technical Support Apr 2, 2008 - 5:58 AM

1) When a combo box or any other control is placed in a toolbar, its enabled/disabled state is controlled by the MFC command updating mechanism. So you should provide the corresponding command with a ON_COMMAND or ON_COMMAND_UPDATE_UI handler.

2) We cannot reproduce the crash. Would you send us the call stack when it occurs?