How to put the content of these 4 XML files into one XML file?

[sankarapandiyan]

I have Created the four windows (Four Forms) and i linked together by using signal slot..For example, if i click next button in the 1st window the 2nd window opens ,like wise i do for all remaining as well as i have store the combobox text in xml by clicking next button ,So i created 4 xml and now if i press the ok button in the first page i want to link all xml and i want to show in all in one XML ,I tried a lot but i cant't please try and help me to resolve it Guys ..

firstpage code

       QString filename1 = QDesktopServices::storageLocation(QDesktopServices::DataLocation)+"/home/newuser/Desktop/filenamemw.xml";
   QFile file("/home/newuser/Desktop/filenamemw.xml");
   if(!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
   qDebug() << "Open the file for writing failed";
  } else {
    QTextStream stream(&file);
    stream << document.toString();
    file.close();
    qDebug() << "Writing is done";

second page code,
QFile file("/home/newuser/Desktop/setting1xmlpage2.xml");
if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
return;

third page code,

  QFile file("/home/newuser/Desktop/setting2xmlpage3.xml");
if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
    return;



QXmlStreamWriter stream(&file);
stream.setAutoFormatting(true);
stream.writeStartDocument();

fourth page ,

        QFile file("/home/newuser/Desktop/setting3xmlpage4.xml");
if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
    return;



QXmlStreamWriter stream(&file);
stream.setAutoFormatting(true);
stream.writeStartDocument();

Thanks in advance

[jsulm]

@sankarapandiyan I don't understand your description: do you want to put the content of these 4 XML files into one XML file?
Why not simply write all the content into one XML file from the beginning instead of writing into 4 files and then merging them?

[sankarapandiyan]

@jsulm yes ,you are saying right but i am not aware of this at my starting point ...

: do you want to put the content of these 4 XML files into one XML file?

yes you are ryt!.please try to resolve it please

[JonB]

@sankarapandiyan
Given that they are currently separate, I'm not sure what you want to do from here? Do you want to merge them into a single file and from then do it that way from now onwards?

I do everything I can with XML documents rather than streams, it's just easier. To merge this way you will need to:

1. Read each of your files into its own http://doc.qt.io/qt-5/qdomdocument.html

2. Use http://doc.qt.io/qt-5/qdomdocument.html#importNode to import into one of them each of the others. You should be able to just import the other documents' http://doc.qt.io/qt-5/qdomdocument.html#documentElement, IIRC, so just one node.

3. Save the QDomDocument you've imported the others into.

[sankarapandiyan]

@JonB said in How to put the content of these 4 XML files into one XML file?:

I'm not sure what you want to do from here?

@JonB said in How to put the content of these 4 XML files into one XML file?:

Do you want to merge them into a single file

yes i want to merge ...

@JonB sure i will try