edit control in different class

[mangocinn]

Hi.

I want to retrieve the value of an edit control from a class that is different from the one that is controlling the dialog.

Class A displays dialogB controlled by Class B.
EditControl is in dialog B.

When I use GetDlgItemText from Class B OnButtonClick event I can retrieve the value of the edit control.

However I try to use GetDlgItemText from Class A and I get a debug assertion error... ?? Anyone know what I am missing?

 

[timmay3141]

Within Class A, make sure you are calling b.GetDlgItemText (where b is your Class B object) instead of just GetDlgItemText. If you didn't call B's method, it would look for that dlg item in A, where it does not exist, which would cause the problem.

 

[mangocinn]

timmay,

Yes I am using the GetDlgItemText on the class B object.

Here is the code that I use within my class A function.

classB dlg;
INT_PTR dlgResponse = dlg.doModal();
if (dlgResponse == IDOK)
{
char localDir[128];

dlg.GetDlgItemText(IDC_MY_EDIT, localDir, 128);
}

I think I know why I am getting the assertion error. It looks like the dialog gets closed before it reaches the GetDlgItemText call. How can I prevent that?

 

[timmay3141]

Yeah, that's the problem. In your dialog's OnOK or OnCancel function, just record in a member variable what the text is, then just access that variable in your code instead of using GetDlgItemText. Since you're using MFC, just bind a CString to that edit box and it should automatically be the correct value without you telling it to update.

 

[mangocinn]

Yes, timmay thanks.... that is what I ended up doing.