Edit Box use [Solved]

[Fawaz Ajani]

Hi to all. I'm not very good at English, so be lenient. I am a beginner in MFC. I created a tab control which uses dialogs using MFC dialog base. I created clases for each dialog. Iwould like to know how to retrieve the value of an edit box located in my class OngletOne with the class MainWinDlg

//OngletOne.h

class OngletOne : public CDialogEx
{
DECLARE_DYNAMIC(OngletOne)

public:
OngletOne(CWnd* pParent = NULL); // standard constructor
virtual ~OngletOne();

// Dialog Data
enum { IDD = IDD_FORMVIEW };

protected:
void Initi();
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support

DECLARE\_MESSAGE\_MAP()

public:
CEdit m_nom;

};

// OngletOne dialog

IMPLEMENT_DYNAMIC(OngletOne, CDialogEx)

OngletOne::OngletOne(CWnd* pParent /*=NULL*/)
: CDialogEx(OngletOne::IDD, pParent)
{

}

OngletOne::~OngletOne()
{
}

void OngletOne::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Control(pDX, IDC_EDIT1, m_nom);
}

BEGIN_MESSAGE_MAP(OngletOne, CDialogEx)
ON_EN_CHANGE(IDC_EDIT1, &OngletOne::OnEnChangeEdit1)
END_MESSAGE_MAP()

// OngletOne message handlers
void OngletOne::Initi()
{
m_nom.LimitText(25);
}

BOOL OngletOne::OnInitDialog()
{
CDialogEx::OnInitDialog();

// TODO:  Add extra initialization here
Initi();

return TRUE;  // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE

}

In my MainWinDlg, I do this:

OngletOne *Onglet1;
CString edit;
Onglet1 = new OngletOne;
OngletOne->GetDlgItemText(IDC_EDIT1, edit);
MessageBox(edit,0,0);

BUT IT SHOW NOTHING. PLEASE I NEED HELP.

[jeron1]

Have you tried Onglet1->DoModal()?

[Albert Holguin]

Well, since you're using a CEdit anyway, why not use one of his own methods to get the text:

OngletOne *Onglet1;
CString edit;
Onglet1 = new OngletOne;
OngletOne->m_nom.GetLine(0, edit);
MessageBox(edit,0,0);

Edit: I also just noticed that you call new and never actually "create" the dialog. You have to create it or else the windows don't really exist (so when you ask for values inside the windows, well, you either get nothing, an error, or a crash). See CDialog::Create() for a modeless dialog or a CDialog::DoModal() for a modal dialog.

[Fawaz Ajani]

I did this:

OngletOne *Onglet1;
CString edit;
Onglet1 = new OngletOne;
Onglet1->Create(IDD_FORMVIEW, this);
Onglet1->m_nom.GetLine(0, edit);
MessageBox(edit,0,0);

But it didn't work. :((

[Lost User]

Fawaz Ajani wrote:

But it didn't work.

You need to look at what you are doing here, you create the dialog and immediately try to capture some data before the edit control has received any information. Try stepping through your code with the debugger to see exactly what is going on and what are the values of all the varibles at each stage. You may like to work through this sample[^] to see how it should be done.

[Albert Holguin]

I agree with what Richard said, you just created the controls, it's probably blank.

[Fawaz Ajani]

It works!!! thanks!!! god bless you!!!!

[Fawaz Ajani]

I see. I did it. it work now!

[Lost User]

You are welcome; good luck with the rest of your development.

[Albert Holguin]

BTW, your example (new,create, and grab the value) would work correctly upon create if you filled in a default value within the OnInitDialog() call of the dialog that owns the control. When working with dialogs, OnInitDialog() is the appropriate place to fill in controls with default values.

[Fawaz Ajani]

thanks!!!:thumbsup: