How to use QXmlLocator？

[useryy2]

http://doc.qt.nokia.com/4.7/qxmllocator.html

For both of "columnNumber()" and "lineNumber()" are pure virtual function. Do I have to implement it myself?

What's the scenario to use it and implement it by myself?

[gnuton]

Hi,
Yes, you do. You need event to sublclass QXmlContentHandler, which is the class that will use it.

[useryy2]

Hi, I know QXmlContentHandler will use it.

My puzzle is in order to create an object of QXmlLocator, I have to implement the lineNumber() and columnNumber(), which I expect to get the two numbers from the library function instead of calculating it by myself.