Is there any example code which read and writes data from/to XML file?

[rajesh]

Is there any example code which read and writes data from/to XML file?

[munna]

Qt examples contains an example that reads and write xml file. I think it is called dombookmarks.

[nupul]

Is there any example code which read and writes data from/to XML file?

Yes! just launch Qt Demo (Qt 4) and the select the bottom most option "XML"!!!

[patrik08]

Is there any example code which read and writes data from/to XML file?

This follow line source fill 14 qlineedit & 5 qcombobox on method:

http://doc.trolltech.com/4.1/qobject.html#findChildren

is the application setting file .....

and inverse / write you can found on http://qtforum.de/forum/viewtopic.php?t=2192

void Setting_Gui::ReadConfig()
{
    QString configwget = APPLICATION_SETTING;
    QFile xmlfile(configwget);
    if(!xmlfile.open( QIODevice::ReadOnly ) ) {
     ErrorConfig("");
    }
    QString errorStr, obname, inhalt;
    int errorLine;
    int errorColumn;
 
    QDomDocument doc("http://www.pulitzer.ch/2005/PuliCMS/1.0");
     if (!doc.setContent(&xmlfile,true, &errorStr, &errorLine, &errorColumn)) {
         QString error = (QString("Parse error at line %1, column %2:\n%3")
         .arg(errorLine)
         .arg(errorColumn)
         .arg(errorStr) );
        ErrorConfig(error);
     xmlfile.close();
     }
    QDomElement root = doc.documentElement();
    if( root.tagName() != "setting" ) {
    ErrorConfig("");
    }
    QDomNode n = root.firstChild();
    while( !n.isNull() )
    {
        QDomElement e = n.toElement();
        if( !e.isNull() )
        {
                       for (int i=0;i<textList.size();i++){
                       obname =QString(textList[i]->objectName());
                         if( e.tagName() == obname ) {
                           textList[i]->setText(decodeBase64(e.text()));
                         }
                       }
                       for (int x=0;x<boxList.size();x++){
                       obname =QString(boxList[x]->objectName()); 
                           if( e.tagName() == obname ) {
                            inhalt = decodeBase64(e.text());
                                 int summ = boxList[x]->count();
                                 for (int i=0;i<summ;i++){
                                    QString value = boxList[x]->itemText(i);
                                    if (inhalt == value) {
                                    boxList[x]->setCurrentIndex(i);
                                    }
                                }
                           }
                       }
         n = n.nextSibling();
        }
    }
   xmlfile.close();
}

void Setting_Gui::ReadConfig()
{
    QString configwget = APPLICATION_SETTING;
    QFile xmlfile(configwget);
    if(!xmlfile.open( QIODevice::ReadOnly ) ) {
     ErrorConfig("");
    }
    QString errorStr, obname, inhalt;
    int errorLine;
    int errorColumn;
   
    QDomDocument doc("http://www.pulitzer.ch/2005/PuliCMS/1.0");
     if (!doc.setContent(&xmlfile,true, &errorStr, &errorLine, &errorColumn)) {
         QString error = (QString("Parse error at line %1, column %2:\n%3")
         .arg(errorLine)
         .arg(errorColumn)
         .arg(errorStr) );
        ErrorConfig(error);
     xmlfile.close();
     }
    QDomElement root = doc.documentElement();
    if( root.tagName() != "setting" ) {
    ErrorConfig("");
    }
    QDomNode n = root.firstChild();
    while( !n.isNull() )
    {
        QDomElement e = n.toElement();
        if( !e.isNull() )
        {
                       for (int i=0;i<textList.size();i++){
                       obname =QString(textList[i]->objectName());
                         if( e.tagName() == obname ) {
                           textList[i]->setText(decodeBase64(e.text()));
                         }
                       }
                       for (int x=0;x<boxList.size();x++){
                       obname =QString(boxList[x]->objectName()); 
                           if( e.tagName() == obname ) {
                            inhalt = decodeBase64(e.text());
                                 int summ = boxList[x]->count();
                                 for (int i=0;i<summ;i++){
                                    QString value = boxList[x]->itemText(i);
                                    if (inhalt == value) {
                                    boxList[x]->setCurrentIndex(i);
                                    }
                                }
                           }
                       }
         n = n.nextSibling();
        }
    }
   xmlfile.close();
}

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