You still have not shown where userDlg has been initialized/assigned.
Yes Jeff,
I think you are close to my problem
Here I assigned the in onitialupdate OF CFormView
m_myCtrlTab.m_tabPages[0]= tabUserData ;
where m_tabpages is an array of CDialog in tab control
and when I use this onNMClick of ListCtrlOne
mv->m_myCtrlTab.m_tabPages[0]->SendMessage(WM_INSERT_ITEMS,0,0);
i am able to handle the user message in tabUserData Dlg
When I use the
mv->m_myCtrlTab.userDlg->m_userLisTCtrl->SendMessage(WM_INSERT_ITEMS,0,0);
I am getting the same error message.
I think this is bad design .I will make Daialog to do something when I
get the message and while NM_CLICK etc will be handles by the
subclassed control ?
What say ?
Advise me for a good design.
thanks
Jeff Partch [MVP] wrote:
<nicetom786@yahoo.com> wrote in message
news:1149805675.981831.279300@g10g2000cwb.googlegroups.com...
David:
Its not the m_ListCtrlTwo that is null.
I
Its the dialog that I get assertion .
ASSERT_VALID(mv->m_myCtrlTab.userDlg);
and goes to objcore.cpp line no 90
// check to make sure the VTable pointer is valid
ASSERT(sizeof(CObject) == sizeof(void*));
if (!AfxIsValidAddress(*(void**)pOb, sizeof(void*), FALSE))
{
TRACE(traceAppMsg, 0, "ASSERT_VALID fails with illegal
vtable
pointer.\n");
if (AfxAssertFailedLine(lpszFileName, nLine))
AfxDebugBreak();
return; // quick escape
}
Both the view and the tabcontrol are valid.
userDlg is a CDialog class inside the tab control.
userdialog was created in the onitialupdate of CFormview
CUserDataDlg *tabUserData = new CUserDataDlg();
m_myCtrlTab.m_nNumberOfPages=1;
m_myCtrlTab.m_tabCurrent=0;
tabUserData->Create(IDD_DLG_USER_DATA,&m_myCtrlTab);
Show how userDlg is or refers to the same object as tabUserData.
--
Jeff Partch [VC++ MVP]