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Newbye dialog problem

Posted on 2006-11-26
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Last Modified: 2013-11-20
Hello experts,

I have defined a dialog class which has a couple of fields I need to update at runtime from outside the class. For each of them I have created variables (CEdit and a CLabel which is sort of an extension for the CStatic). Prior to showing it with DoModal() I need to set appropriate texts to my fields.

It's obvious I do something wrong as I get assertion failed (wincore.cpp line 3940) message when trying to do that and it's probably obvious... perhaps the dialog is not created yet

This is from outside the class

CMyDialog* dlg;
dlg->testEdit.SetWindowText("one, two, three");
dlg->testLabel.SetWindowText("bla-bla");
dlg->DoModal();

Not trying to set any of the fields above issues no error and the dialog is displayed ok; Perhaps the DoModal() calls dialog initiazation code and my fields are still NULL when trying to used them; I don't know.



Thank you,
Aureliu

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Question by:aureliuh
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2 Comments
 
LVL 48

Accepted Solution

by:
AlexFM earned 100 total points
ID: 18014167
This doesn't work because controls don't exist before DoModal is called.
Add two public CString members to CMyDialog:

CString editText;
CString labelText;

Creating dialog:

CMyDialog* dlg;   // I hope you create is somewhere

dlg->editText = "one, two, three";
dlg->labelText = "bla-bla";
dlg->DoModal();

Add these lines to CMyDialog::OnInitDialog:

testEdit.SetWindowText(editText );
testLabel.SetWindowText(labelText );
0
 

Author Comment

by:aureliuh
ID: 18014200
Was I suppose to create the pointer???

Just kidding, at least I knew that, thanks for dropping a little condescendent question on the dialog pointer :))

You are perfectly right on this, I felt the dialog is not ready yet, but never thought the CStrings members will be... I come from Borland C++ and this is new to me, lots of minor things have to be learned and tested...


Thank you,
Aureliu
0

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