Codejock Developer Community : Empty PX_String - strange behaviour on load

Empty PX_String - strange behaviour on load : Shouldn't

Mon, 11 Aug 2008 02:11:12 +0000

Author: Oleg
Subject: 11688
Posted: 11 August 2008 at 2:11am

Shouldn't

Empty PX_String - strange behaviour on load : Hi Oleg;Shouldn't it also...

Sun, 10 Aug 2008 11:10:06 +0000

Author: mgampi
Subject: 11688
Posted: 10 August 2008 at 11:10am

Hi Oleg;

Shouldn't it also work with non compact mode and/or formatted XML?
Is this a bug of the MSXML implementation?

Empty PX_String - strange behaviour on load : Hi, Please remove px.SetCompactMode(FALSE);...

Fri, 08 Aug 2008 06:19:50 +0000

Author: Oleg
Subject: 11688
Posted: 08 August 2008 at 6:19am

Hi,

Please remove px.SetCompactMode(FALSE); line. or don't format XML:

px.SaveToFile(pszPath, FALSE);

Empty PX_String - strange behaviour on load : Hi Oleg;Here is my code to store...

Thu, 07 Aug 2008 17:29:26 +0000

Author: mgampi
Subject: 11688
Posted: 07 August 2008 at 5:29pm

Hi Oleg;

Here is my code to store the settings into the XML file:

bool StoreEventConfigSettings(struct _EventConfigOptions& gSettings, DWORD& dwError) {
    TCHAR pszPath[MAX_PATH];
    if (SHGetFolderPath(0, CSIDL_COMMON_APPDATA, 0, SHGFP_TYPE_CURRENT, pszPath)==S_OK) {
        _tcscat(pszPath, _T("\\XRangeEye EventConfig 1.5"));

        CXTPPropExchangeXMLNode px(FALSE, 0, _T("EventConfigSettings"));
        px.SetCompactMode(FALSE);

        if (px.OnBeforeExchange()) {
            VERIFY(PX_String(&px, _T("DBConnect"), gSettings.EventConfigGeneralOptions.strService));
            
            CXTPPropExchangeSection pxSubNode1(px.GetSection(_T("Service")));
            VERIFY(PX_String(&pxSubNode1, _T("User"),    gSettings.EventConfigServiceOptions.strUser));
            VERIFY(PX_Blob(&pxSubNode1, _T("Security"), gSettings.EventConfigServiceOptions.lpPassword, gSettings.EventConfigServiceOptions.dwLen));
            VERIFY(PX_String(&pxSubNode1, _T("Domain"),    gSettings.EventConfigServiceOptions.strDomain));

            _tcscat(pszPath, _T("\\Options.xml"));
            return (px.SaveToFile(pszPath)==S_OK)
        }
    } 
    return false;
}

And here is the counterpart...

bool LoadEventConfigSettings(struct _EventConfigOptions& gSettings)
{
    TCHAR pszPath[MAX_PATH];
    if (SHGetFolderPath(0, CSIDL_COMMON_APPDATA, 0, SHGFP_TYPE_CURRENT, pszPath)==S_OK)
    {
        _tcscat(pszPath, _T("\\XRangeEye EventConfig 1.5\\Options.xml"));

        CXTPPropExchangeXMLNode px(TRUE, 0, _T("EventConfigSettings"));
        if (px.LoadFromFile(pszPath))
        {
            VERIFY(PX_String(&px, _T("DBConnect"),    gSettings.EventConfigGeneralOptions.strService));

            CXTPPropExchangeSection pxSubNode1(px.GetSection(_T("Service")));
            VERIFY(PX_String(&pxSubNode1, _T("User"),        gSettings.EventConfigServiceOptions.strUser));
            if (gSettings.EventConfigServiceOptions.lpPassword!=0) {
                free(gSettings.EventConfigServiceOptions.lpPassword);
                gSettings.EventConfigServiceOptions.lpPassword=0;
                gSettings.EventConfigServiceOptions.dwLen=0;
            }
            VERIFY(PX_String(&pxSubNode1, _T("Domain"),    gSettings.EventConfigServiceOptions.strDomain));
            VERIFY(PX_Blob(&pxSubNode1, _T("Security"), gSettings.EventConfigServiceOptions.lpPassword, gSettings.EventConfigServiceOptions.dwLen));
            return true;
        }
    }

    XREventConfigOptions=XREventConfigDefaultOptions;

    return false;
}

In my case, most of the time the parameter "Domain" is an empty string. So storing the empty string and afterwards loading it results in a string with \n three times

Empty PX_String - strange behaviour on load : Hi, Show code lines

Sun, 03 Aug 2008 04:16:21 +0000

Author: Oleg
Subject: 11688
Posted: 03 August 2008 at 4:16am

Hi,

Show code lines

Empty PX_String - strange behaviour on load : Hi;I'm using Toolkit 12.0.1...

Fri, 01 Aug 2008 05:47:13 +0000

Author: mgampi
Subject: 11688
Posted: 01 August 2008 at 5:47am

Hi;

I'm using Toolkit 12.0.1 and CXTPPropExchangeXMLNode to store/load settings into/from XML files.
When calling PX_String to store empty CString values (GetLength() returns 0) and afterwards calling PX_String to load the empty string from the XML file, I get a string with three newline ASCII code 10 characters in it!

Is this a BUG or do I miss something?