A masked edit control

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I got this masked edit control code from someone (I can't remember whom it was). If anyone wishes to lay claim to the original they are more than welcome. I have found this quite useful. So I can't lay claim to doing all or even most of this. However I have enhanced the code to deal with times as well as dates.

I have also added validation of the keystrokes so that invalid times i.e. > 23:59 are not allowed. (I have limited the time validation to minutes. It would be no great effort to add in the seconds. Validation for dates is a little more difficult. Validation is limited to months < 13 and days < 32.

i.e you can put in 31/02/1998 for example.

Ok how to make it work. There are three classes

  • CMaskEdit
  • CDateEdit
  • CTimeEdit

Include the two files MASKED.CPP and MASKED.H in your project. Also include <afxdao.h> for the COleDateTime features if you already haven't. Modify the include line that says #include "myproj" to point to your project. Create a CEdit control and declare a control variable in your dialog then modify the CEdit declaration in the class header to say either CDateEdit or CTimeEdit


Pass your time to CDateEdit with

	CDateEdit myeditctrl;
	myeditctrl.SetDate(COleDateTime var);

and get the edited result back with

	COleDateTime var = myeditctrl.GetDate();


Pass your time to CTimeEdit with

	CTimeEdit myeditctrl;
	myeditctrl.SetTime(COleDateTime var);

and get the edited result back with

	COleDateTime var = myeditctrl.GetTime();

and there you have it.

Please feel free to modify any modifications I have made. These are stated with //added this

Last updated: 15 May 1998


  • ExEditors Library

    Posted by Legacy on 03/19/2002 12:00am

    Originally posted by: Mike Philips

    A complete collection of editors in a single file:



  • Software Engineer

    Posted by Legacy on 07/26/1999 12:00am

    Originally posted by: Larry Reid

    Thanks for the cool control.  May I point out one limitation.  When you do the following, it seems to get confused.

    COleDateTime oDateTime;

    It leaves the edit control blank. The fix is to add/change the following function to:

    {void FormatCOleDateTime(CString& strData, COleDateTime DateTime, int len)
    strData = "";
    if (DateTime.m_dt == 0)
    if(len == 5)
    strData = "00:00";
    else if (len == 8)
    strData = DateTime.Format("%d/%m/%y");
    else if(len == 5) // added these two
    strData = DateTime.Format("%H:%M");
    strData = DateTime.Format("%d/%m/%Y");

    Now she's cool.....

  • BUGFIX : About OnChar

    Posted by Legacy on 01/16/1999 12:00am

    Originally posted by: Sang-il, Lee

    Fix OnChar(..)

    CEdit::OnChar(nChar, nRepCnt, nFlags);

    if (!m_bMaskKeyInProgress && m_bUseMask && !m_strLiteral.IsEmpty())
    int startPos, endPos;
    GetSel(startPos, endPos);
    // make sure the string is not longer than the mask
    if (endPos < m_strLiteral.GetLength())
    UINT c = m_strLiteral.GetAt(endPos);
    if (c != '_') { // Debuged by Sang-il, Lee T.T

    Original code doesn't work. (In my visual C++ 6.0)
    Why use SendMessage in SendChar to move cursor.

    this code has bug. if "00--00--00", doesn't work. But
    I have no needs. If you needed, It's your job.

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