MFC - how to get an edit box text from another dialog?? (Constructor)

symeramon

Hi there, I have an edit box control in a dialog and a button which opens another dialog... I need to learn how can I use main dialog's aditbox text in opened one's editbox (Data transfer)... Please I need urgent help... :(

App_

use DDX_Text An example of DDX_Text usage

enhzflep

Howdy, you'll need the HWND of each dialog and the INT identifier of each control, or you'll need the HWND of each edit control.I'll assume the first.

HWND editSrc, editDst;
char \*szBuffer;
int stringLength;

editSrc = GetDlgItem(dlg1, IDC\_EDITBOX1);
editDst = GetDlgItem(dlg2, IDC\_EDITBOX2);

stringLength = GetWindowTextLength(editSrc);
szBuffer = new char\[stringLength+1\];
ZeroMemory(szBuffer, stringLength+1);
GetWindowText(editSrc, szBuffer, stringLength);

SetWindowText(editDst, szBuffer);
delete szBuffer;

Madhu Nair 0

Keep a public CString member variable in Child dialog class, set the member variable before calling the DoModal() or Create function of child dialog. Call SetWindowText of edit control in InitDialog. for. eg If CMainDlg is your Main dialog class and CChildDialog be the child. in header of CChildDialog you declare a public member variable to hold the string

class CChildDialog : public CDialog
{
public :
CString m_strText;
}

and in your button click function of CMainDlg do this

void CMainDlg::OnClick_Button()
{

CChildDialog oChildDlg;
oChildDlg.m_strText = strText; // This should be the edit box value
oChildDlg.DoModal();
}

Set the variable value in CChildDialog's OnInitDialog as

CChildDialog::OnInitDialog()
{
SetDlgItemText(ID_OF_YOUR_EDIT, m_strText);
}

You can also set the text by modifying your constructor of CChildDialog, such as

CChildDialog::CChildDialog(CString strText)

Lost User

You could use GetDlgItemText()[^] and its counterpart SetDlgItemText().

Unrequited desire is character building. OriginalGriff

Lost User

See my response for simpler functions.

Unrequited desire is character building. OriginalGriff

symeramon

From class wizard, maindialog's member variables I added a member variable to the editbox which gets the editbox's value and then as you said, I equalize each variables but than it returns nothing from main dialog ??? :(

symeramon

I did it as Mahdu replied and by your hint... like

void mainform::OnBnClickedButton2()
{
GetDlgItemText(IDC_EDIT1,newform.strtext);
}

BOOL newform::OnInitDialog()
{
SetDlgItemText(IDC_EDIT1, strtext);
}

THANKS TO YOU ALL FOR REPLIES PEOPLE!!! YOU ARE GREAT... :))

enhzflep

:facepalm: Of course! Cheers Richard.

David Crow

How about something like:

CMainDlg::OnButtonClick()
{
CString strText;
m_edit.GetWindowText(strText);

CSecondDlg dlg;
dlg.setData(strText);

dlg.DoModal();

}

CSecondDlg::setData( LPCTSTR lpszText )
{
m_strText = lpszText;
}

CSecondDlg:OnInitDialog()
{
m_edit.SetWindowText(m_strText);
}

I'm a big fan of weak coupling, so tying these two dialogs together like this would not be my first choice. I would opt for a "data transfer" or "liaison" class instead. This is a one-instance class where you would put all of your shared data.

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symeramon

Thanks for your reply David... I would like to criticise your post if I was more skilled... But seems :cool: to me for now... Maybe not, in the future?? :laugh: Just joking, thanks again...

symeramon

By the way, you can just explain this :

CFileDialog *pOpenDlg=new CFileDialog(FALSE,".txt",NULL,OFN_OVERWRITEPROMPT,"Text Files (*.txt)|*.txt|All Files(*.*)|*.*||");

if you want some more charity from our heavenly father?? :)PLEASE! :(

Chandrasekharan P

Try and put this code in a button click and see what happens. then you will understand why is this code required.

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