C / C++ / MFC

Sakthi_Vel wrote:

B b=a;// this statement gives no error! How? please explain

Chandrasekharanp wrote:

extremely sorry for again putting the query in the forum..

Chandrasekharanp wrote:

well i wanted to know how to set the third edit box value

CEdit* pEdit = (CEdit)GetDlgItem(IDC_MY_EDIT);
 
pEdit->SetWindowText(_T("Hello World"));

//CMyDialog.h
CEdit* m_aPEdits [NUM_EDITS];
.
//CMyDialog.cpp

void CMyEdit::OnInitDialog ()
{
   //More code

   m_aPEDits [0] = (CEdit*) GetDlgItem(IDC_MY_EDIT1);
   m_aPEDits [1] = (CEdit*) GetDlgItem(IDC_MY_EDIT2);
   m_aPEDits [2] = (CEdit*) GetDlgItem(IDC_MY_EDIT3);
   m_aPEDits [3] = (CEdit*) GetDlgItem(IDC_MY_EDIT4);
   //and so on

   //More code
}


//
BOOL CMyEdit::ValidateEditContents ()
{
   int nError = 0;

   for (int i = 0; i < NUM_EDITS; i++)
   {   int nTemp = -1;
       nTemp = itoa (m_aPEdits[i]->GetDialogText ());
       if ( ((10 * i) < nTemp) && (nTemp < (10 * (i+1))) )
          continue;

       nError++;  //This will execute only when the if is not being executed
   }

   if (!nError)
      return TRUE;

   return FALSE;
}

//
void CMyEdit::OnOK ()
{
   //More Code

   if (ValidateEditContents ())
      m_bDlgOK = TRUE;

   //More code
}


//And where you call the dialog...

void SomeClass::A_Function ()
{
    //More code


    CMyDialog newDlg;

EditStartLabel:
    if (IDCANCEL == newDlg.DoModal ())
       goto EditEndLabel;

    if (!newDlg.m_bDlgOK)
    {   MessageBox ("One of the edits has an invalid value, please correct it", "Error", MB_OK);
        goto EditStartLabel;
    }

    //The datas were OK
    //So you can bring them here and save, operate or do whatever you want
    //with the member variables, i.e. newDlg.m_nAnInt;

EditEndLabel:
    //here you can free memory
    //or do whatever you want to be executed ALL the times this function is called
    return;
}

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
“The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet.” - Michael A. Jackson

toxcct wrote:

to restrict an edit to a given range, you could attach it a spin control.

Haroon Sarwar wrote:

DDV_MinMaxInt(pDX, IDC_EDIT_BOX, 1, 10);

<br />
        DDX_Control(pDX, IDC_EDIT1, m_edit1);<br />
	DDX_Text(pDX, IDC_EDIT2, m_edit2);<br />
	DDX_Text(pDX, IDC_EDIT3, m_edit3);<br />
	DDV_MinMaxInt(pDX, IDC_EDIT1, 1, 10);<br />
	DDV_MinMaxInt(pDX, IDC_EDIT2, 1, 20);<br />
	DDV_MinMaxInt(pDX, IDC_EDIT3, 20, 30); <br />

Chandrasekharanp wrote:

...can i use this piece of code multiple times in the DoDataExchange Function..