Re: How do controls get connected to variables in a CFormView?

From:
"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>
Newsgroups:
microsoft.public.vc.mfc
Date:
Fri, 20 Jul 2007 10:08:57 -0400
Message-ID:
<ktqdnVhJoLuTXz3bnZ2dnUVZ_hynnZ2d@comcast.com>
CedricCicada@gmail.com wrote:

The controls are associated with variables by DDX_Control calls in
DoDataExchange of your view class. These calls are added automatically
by the wizard if you add the control variables this way: right-click on
the control in the dialog template, select Add Variable.

You can add the same calls by hand once you see what the wizard does for
one of them.

--
Scott McPhillips [MVP VC++]- Hide quoted text -


Scott,

Thank you for your reply. As near as I can tell, the code for the two
classes is the same. When does DDX_Control() first get called?
Should my variable be associated with a window by the time
OnInitialUpdate() gets called?

Rob


void CSDIView::OnInitialUpdate()
{
  CView::OnInitialUpdate();
  // TODO: Add your specialized code here and/or call the base class
}

The call to CView::OnInitialUpdate() causes the initial DDX_Control()
calls. So control variables first become ready to use at the TODO.

--
Scott McPhillips [MVP VC++]

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