Set String in the List Boxes in the Next Dialog

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Hi
I want to write a program in mfc and in the main dialog if you click a button I want to display another dialog using

sampledlg.DoModal();

and in it I want to use:

listbox.AddString(L"str1");

but I get an error and I can not add strings. please tell me why?
Is this for making another dlg with DoModal() function?

thanks.

Posted 4-Dec-10 3:21am

Coder-123456

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pasztorpisti · Accepted Answer · 2010-12-04T03:58:00

Instead of DoModal() try to put your initialization to virtual BOOL OnInitDialog() if its not there already. It was long ago I used MFC for the last time but I think that at the time DoModal() is called not all the underlying resources (HWNDs) are created, but when InitDialog() runs, they already exist (including your listbox). Another common mistak I made a lot of times when I started MFC is that I haven't attached the MFC objects to the underlying controls (HWNDs) in either DoDataExchange() with DDX_Control() or in InitDialog() with SubClassDlgItem().