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Dear Support,

I see the existing CExtGridCellDateTime. I need a duration cell, but could not find (like the normal control CExtDurationWnd)

Please advise.

Regards,
Ron.

Found it! CExtGridCellDuration

Another question - I see that the cell is displayed 0 Days 00:00:00.
I would like to get rid of the 0 Days part, and if its more then 23:59:59 hours, I would like it to write 24:00:00, 25:00:00 etc.
How can this be done?

Thanks,
Ron.

We have just added a CExtGridCellDuration::IsItemVisible virtual method. By overriding this method in the CExtGridCellDuration-derived class, you can manage the visibility of duration parts: days, hours, minutes and seconds. Please download the latest stable source code from our ftp server.

Will it display two days as 48:00:00?

Yes, it will. But please update the CExtGridCellDuration::TextGet method with this to get the cell text shown correctly:

void CExtGridCellDuration::TextGet( CExtSafeString & strCopy ) const
{
    ASSERT_VALID( this );
    if(        (GetStyleEx()&__EGCS_EX_UNDEFINED_ROLE) != 0 
        ||    IsEmpty()
        )
    {
        strCopy = _T("");
        return;
    }
    strCopy.Empty();

    if( m_dtSpan.GetStatus() == COleDateTimeSpan::valid )
    {
        LONG nTotalSeconds = (LONG) m_dtSpan.GetTotalSeconds();
    
        CString sDays;
        CString sHours;
        CString sMinutes;
        CString sSeconds;

        if( IsItemVisible( day ) )
        {
            INT nDays = nTotalSeconds / (60 * 60 * 24);
            nTotalSeconds -= (nDays * 60 * 60 * 24);
            CString sDaysLocalizedName;
            if( ! g_ResourceManager->LoadString( sDaysLocalizedName, IDS_EXT_DURATION_DAYS ) )
                sDaysLocalizedName = _T(" Days");
            sDays.Format(
                _T("%d%s"),
                nDays,
                sDaysLocalizedName
                );
        }
        if( IsItemVisible( hour ) )
        {
            INT nHours = nTotalSeconds / (60 * 60);
            nTotalSeconds -= (nHours * 60 * 60);
            sHours.Format(
                _T("%02d"),
                nHours
                );
        }
        if( IsItemVisible( minute ) )
        {
            INT nMinutes = nTotalSeconds / 60;
            nTotalSeconds -= (nMinutes * 60);
            sMinutes.Format(
                _T("%02d"),
                nMinutes
                );
        }
        if( IsItemVisible( second ) )
        {
            INT nSeconds = nTotalSeconds;
            sSeconds.Format(
                _T("%02d"),
                nSeconds
                );
        }
        strCopy = sSeconds;
        if( !sMinutes.IsEmpty() )
        {
            if( !strCopy.IsEmpty() )
                strCopy.Insert( 0, _T(":") );
            strCopy.Insert( 0, sMinutes );
        }
        if( !sHours.IsEmpty() )
        {
            if( !strCopy.IsEmpty() )
                strCopy.Insert( 0, _T(":") );
            strCopy.Insert( 0, sHours );
        }
        if( !sDays.IsEmpty() )
        {
            if( !strCopy.IsEmpty() )
                strCopy.Insert( 0, _T(" ") );
            strCopy.Insert( 0, sDays );
        }
    }
}

Checking source code, it seems that this format is set in CExtGridCellDuration::TextGet method, in which I can’t see any option how you could customize this behaviour. So my best guess would be to override this method and format the string to your own needs.

That’s a good idea, but I think this should be customizable at the level of the CExtGridCellDuration class.
Support - can this be implemented fro the upcoming version?

Thanks,
Ron.