C / C++ / MFC

WhiteSky wrote:

(Do you find your answer?LNK2005)

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

sudeep_br wrote:

i have a edit box named as NAME and a OK button

ThatsAlok wrote:

Handle EN_CHANGE message for your edit box in your appplication..for reteriving value from edit box using GetWindowText api, based on it value either append it in location box using GetWindowText and SetWindowText or Disable the Edit Box using EnableWindow(...) if empty value has been entered

sudeep_br wrote:

when i enter sum text in edit box the OK button is enabled but when i delete the entered text,the ok button shud be disabled again. how to do this?

parichaybp wrote:

Its better u read VC++ in 21 day

void CMyDialog::DoDataExchange(CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
    //{{AFX_DATA_MAP(CMyDialog)
    DDX_Control(pDX, IDC_EDIT, m_edit);
    DDX_Control(pDX, IDOK, m_ok);
    //}}AFX_DATA_MAP
}
 
BEGIN_MESSAGE_MAP(CMyDialog, CDialog)
    //{{AFX_MSG_MAP(CMyDialog)
    ON_EN_CHANGE(IDC_EDIT, OnChange)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()
 
void CMyDialog::OnChange() 
{
    m_ok.EnableWindow(m_edit.GetWindowTextLength() > 0);
}

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

DavidCrow wrote:

void CMyDialog::DoDataExchange(CDataExchange* pDX){ CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CMyDialog) DDX_Control(pDX, IDC_EDIT, m_edit); DDX_Control(pDX, IDOK, m_ok); //}}AFX_DATA_MAP} BEGIN_MESSAGE_MAP(CMyDialog, CDialog) //{{AFX_MSG_MAP(CMyDialog) ON_EN_CHANGE(IDC_EDIT, OnChange) //}}AFX_MSG_MAPEND_MESSAGE_MAP() void CMyDialog::OnChange() { m_ok.EnableWindow(m_edit.GetWindowTextLength() > 0);}

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

DavidCrow wrote:

void CMyDialog::OnChange() { m_ok.EnableWindow(m_edit.GetWindowTextLength() > 0);}

sudeep_br wrote:

...but when i go to class wizard and then to member variable name i only have cstring as variable type option apart from int, bool etc. theres no option Cedit. what should i do?

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb