Qt-interest Archive, February 2008
DOM-XML not understanding
Message 1 in thread
Hi,
I have an xml file that looks like this:
---------
<?xml version="1.0"?>
<Document>
<Elements>
</Elements>
</Document>
----------
the I do in my app:
QTextStream TextStream(&file);
QDomElement root = doc.documentElement();
QDomNode n = root.firstChild();
n.appendChild(doc.createElement("red"));
n.appendChild(doc.createElement("white"));
n.save(TextStream,4);
file.close();
and the result is:
-------
<?xml version="1.0"?>
<Document>
<Elements>
</Elements>
</Document> <Elements>
<red/>
<white/>
</Elements>
-------
But what I wanted is:
------------
<?xml version="1.0"?>
<Document>
<Elements>
<red>
</red>
<white>
</white>
</Elements>
</Document>
------------
What do I have to change to get the result that I want?
BR
Eckhard
--
[ signature omitted ]
Message 2 in thread
Whats wrong with <red/> ?
<red/> is the XML equivalent to <red></red>
if you don't want those (special case for empty elements)
put something in the elements!
Cheers,
Peter
> -----Ursprüngliche Nachricht-----
> Von: Eckhard Jokisch [mailto:e.jokisch@xxxxxxxxx]
> Gesendet: Mittwoch, 27. Februar 2008 18:02
> An: qt-interest@xxxxxxxxxxxxx
> Betreff: DOM-XML not understanding
>
> Hi,
> I have an xml file that looks like this:
> ---------
> <?xml version="1.0"?>
> <Document>
> <Elements>
> </Elements>
> </Document>
> ----------
> the I do in my app:
>
> QTextStream TextStream(&file);
> QDomElement root = doc.documentElement();
> QDomNode n = root.firstChild();
> n.appendChild(doc.createElement("red"));
> n.appendChild(doc.createElement("white"));
> n.save(TextStream,4);
> file.close();
>
> and the result is:
> -------
> <?xml version="1.0"?>
> <Document>
> <Elements>
> </Elements>
> </Document> <Elements>
> <red/>
> <white/>
> </Elements>
> -------
>
> But what I wanted is:
> ------------
> <?xml version="1.0"?>
> <Document>
> <Elements>
> <red>
> </red>
> <white>
> </white>
> </Elements>
> </Document>
> ------------
>
> What do I have to change to get the result that I want?
>
> BR
> Eckhard
>
> --
> To unsubscribe - send a mail to
> qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the
> subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
>
--
[ signature omitted ]
Message 3 in thread
Hi Peter,
the problem is not the <red/>, my problem is the tree order of the elements.
Or am I totally confused about XML now? I thought that <Document> is the
root element and everything else should live within the root element.
Cheers
Eckhard
Peter Prade wrote:
> Whats wrong with <red/> ?
>
> <red/> is the XML equivalent to <red></red>
>
> if you don't want those (special case for empty elements)
> put something in the elements!
>
> Cheers,
> Peter
>
>> -----Ursprüngliche Nachricht-----
>> Von: Eckhard Jokisch [mailto:e.jokisch@xxxxxxxxx]
>> Gesendet: Mittwoch, 27. Februar 2008 18:02
>> An: qt-interest@xxxxxxxxxxxxx
>> Betreff: DOM-XML not understanding
>>
>> Hi,
>> I have an xml file that looks like this:
>> ---------
>> <?xml version="1.0"?>
>> <Document>
>> <Elements>
>> </Elements>
>> </Document>
>> ----------
>> the I do in my app:
>>
>> QTextStream TextStream(&file);
>> QDomElement root = doc.documentElement();
>> QDomNode n = root.firstChild();
>> n.appendChild(doc.createElement("red"));
>> n.appendChild(doc.createElement("white"));
>> n.save(TextStream,4);
>> file.close();
>>
>> and the result is:
>> -------
>> <?xml version="1.0"?>
>> <Document>
>> <Elements>
>> </Elements>
>> </Document> <Elements>
>> <red/>
>> <white/>
>> </Elements>
>> -------
>>
>> But what I wanted is:
>> ------------
>> <?xml version="1.0"?>
>> <Document>
>> <Elements>
>> <red>
>> </red>
>> <white>
>> </white>
>> </Elements>
>> </Document>
>> ------------
>>
>> What do I have to change to get the result that I want?
>>
>> BR
>> Eckhard
>>
>> --
>> To unsubscribe - send a mail to
>> qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the
>> subject or the body.
>> List archive and information: http://lists.trolltech.com/qt-interest/
>>
>>
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with
> "unsubscribe" in the subject or the body. List archive and information:
> http://lists.trolltech.com/qt-interest/
--
[ signature omitted ]
Message 4 in thread
I see it now.
What do you expect these 2 lines to do?
QDomElement root = doc.documentElement();
QDomNode n = root.firstChild();
Your document is empty at that point, so you somehow append your elements behind the document.
have a look at the docs:
http://doc.trolltech.com/4.3/qdomdocument.html#details
They do it like this:
QDomElement root = doc.createElement("MyML");
doc.appendChild(root);
QDomElement tag = doc.createElement("Greeting");
root.appendChild(tag);
Cheers,
Peter
> -----Ursprüngliche Nachricht-----
> Von: Eckhard Jokisch [mailto:e.jokisch@xxxxxxxxx]
> Gesendet: Mittwoch, 27. Februar 2008 18:51
> An: qt-interest@xxxxxxxxxxxxx
> Betreff: Re: AW: DOM-XML not understanding
>
> Hi Peter,
> the problem is not the <red/>, my problem is the tree order
> of the elements.
> Or am I totally confused about XML now? I thought that
> <Document> is the
> root element and everything else should live within the root element.
>
> Cheers
> Eckhard
>
> Peter Prade wrote:
>
> > Whats wrong with <red/> ?
> >
> > <red/> is the XML equivalent to <red></red>
> >
> > if you don't want those (special case for empty elements)
> > put something in the elements!
> >
> > Cheers,
> > Peter
> >
> >> -----Ursprüngliche Nachricht-----
> >> Von: Eckhard Jokisch [mailto:e.jokisch@xxxxxxxxx]
> >> Gesendet: Mittwoch, 27. Februar 2008 18:02
> >> An: qt-interest@xxxxxxxxxxxxx
> >> Betreff: DOM-XML not understanding
> >>
> >> Hi,
> >> I have an xml file that looks like this:
> >> ---------
> >> <?xml version="1.0"?>
> >> <Document>
> >> <Elements>
> >> </Elements>
> >> </Document>
> >> ----------
> >> the I do in my app:
> >>
> >> QTextStream TextStream(&file);
> >> QDomElement root = doc.documentElement();
> >> QDomNode n = root.firstChild();
> >> n.appendChild(doc.createElement("red"));
> >> n.appendChild(doc.createElement("white"));
> >> n.save(TextStream,4);
> >> file.close();
> >>
> >> and the result is:
> >> -------
> >> <?xml version="1.0"?>
> >> <Document>
> >> <Elements>
> >> </Elements>
> >> </Document> <Elements>
> >> <red/>
> >> <white/>
> >> </Elements>
> >> -------
> >>
> >> But what I wanted is:
> >> ------------
> >> <?xml version="1.0"?>
> >> <Document>
> >> <Elements>
> >> <red>
> >> </red>
> >> <white>
> >> </white>
> >> </Elements>
> >> </Document>
> >> ------------
> >>
> >> What do I have to change to get the result that I want?
> >>
> >> BR
> >> Eckhard
> >>
> >> --
> >> To unsubscribe - send a mail to
> >> qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the
> >> subject or the body.
> >> List archive and information:
> http://lists.trolltech.com/qt-interest/
> >>
> >>
> >
> > --
> > To unsubscribe - send a mail to
> qt-interest-request@xxxxxxxxxxxxx with
> > "unsubscribe" in the subject or the body. List archive and
> information:
> > http://lists.trolltech.com/qt-interest/
>
> --
> To unsubscribe - send a mail to
> qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the
> subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
>
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[ signature omitted ]
Message 5 in thread
Hi Peter,
thanks for that hint. Somehow I never saw this part of the documentation
regarding creation of a document and tried to invent the wheel myselves....
Cheers
Eckhard
Peter Prade wrote:
> I see it now.
>
> What do you expect these 2 lines to do?
>
> QDomElement root = doc.documentElement();
> QDomNode n = root.firstChild();
>
> Your document is empty at that point, so you somehow append your elements
> behind the document.
>
> have a look at the docs:
> http://doc.trolltech.com/4.3/qdomdocument.html#details
>
> They do it like this:
> QDomElement root = doc.createElement("MyML");
> doc.appendChild(root);
> QDomElement tag = doc.createElement("Greeting");
> root.appendChild(tag);
>
> Cheers,
> Peter
>
>> -----Ursprüngliche Nachricht-----
>> Von: Eckhard Jokisch [mailto:e.jokisch@xxxxxxxxx]
>> Gesendet: Mittwoch, 27. Februar 2008 18:51
>> An: qt-interest@xxxxxxxxxxxxx
>> Betreff: Re: AW: DOM-XML not understanding
>>
>> Hi Peter,
>> the problem is not the <red/>, my problem is the tree order
>> of the elements.
>> Or am I totally confused about XML now? I thought that
>> <Document> is the
>> root element and everything else should live within the root element.
>>
>> Cheers
>> Eckhard
>>
>> Peter Prade wrote:
>>
>> > Whats wrong with <red/> ?
>> >
>> > <red/> is the XML equivalent to <red></red>
>> >
>> > if you don't want those (special case for empty elements)
>> > put something in the elements!
>> >
>> > Cheers,
>> > Peter
>> >
>> >> -----Ursprüngliche Nachricht-----
>> >> Von: Eckhard Jokisch [mailto:e.jokisch@xxxxxxxxx]
>> >> Gesendet: Mittwoch, 27. Februar 2008 18:02
>> >> An: qt-interest@xxxxxxxxxxxxx
>> >> Betreff: DOM-XML not understanding
>> >>
>> >> Hi,
>> >> I have an xml file that looks like this:
>> >> ---------
>> >> <?xml version="1.0"?>
>> >> <Document>
>> >> <Elements>
>> >> </Elements>
>> >> </Document>
>> >> ----------
>> >> the I do in my app:
>> >>
>> >> QTextStream TextStream(&file);
>> >> QDomElement root = doc.documentElement();
>> >> QDomNode n = root.firstChild();
>> >> n.appendChild(doc.createElement("red"));
>> >> n.appendChild(doc.createElement("white"));
>> >> n.save(TextStream,4);
>> >> file.close();
>> >>
>> >> and the result is:
>> >> -------
>> >> <?xml version="1.0"?>
>> >> <Document>
>> >> <Elements>
>> >> </Elements>
>> >> </Document> <Elements>
>> >> <red/>
>> >> <white/>
>> >> </Elements>
>> >> -------
>> >>
>> >> But what I wanted is:
>> >> ------------
>> >> <?xml version="1.0"?>
>> >> <Document>
>> >> <Elements>
>> >> <red>
>> >> </red>
>> >> <white>
>> >> </white>
>> >> </Elements>
>> >> </Document>
>> >> ------------
>> >>
>> >> What do I have to change to get the result that I want?
>> >>
>> >> BR
>> >> Eckhard
>> >>
>> >> --
>> >> To unsubscribe - send a mail to
>> >> qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the
>> >> subject or the body.
>> >> List archive and information:
>> http://lists.trolltech.com/qt-interest/
>> >>
>> >>
>> >
>> > --
>> > To unsubscribe - send a mail to
>> qt-interest-request@xxxxxxxxxxxxx with
>> > "unsubscribe" in the subject or the body. List archive and
>> information:
>> > http://lists.trolltech.com/qt-interest/
>>
>> --
>> To unsubscribe - send a mail to
>> qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the
>> subject or the body.
>> List archive and information: http://lists.trolltech.com/qt-interest/
>>
>>
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with
> "unsubscribe" in the subject or the body. List archive and information:
> http://lists.trolltech.com/qt-interest/
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