QDomElement parentElem = xmlDoc.firstChildElement("root"); // get parent element QDomElement oldChildElem = parentElem.firstChildElement("oldChild"); // get old child element QDomElement newChildElem = xmlDoc.createElement("newChild"); // create new child element parentElem.replaceChild(newChildElem, oldChildElem); // replace old child element with new child element
QDomElement parentElem = xmlDoc.firstChildElement("root"); // get parent element QDomNodeList childNodes = parentElem.childNodes(); // get list of child nodes for (int i = 0; i < childNodes.size(); i++) { QDomElement oldChildElem = childNodes.at(i).toElement(); // get old child element QDomElement newChildElem = xmlDoc.createElement("newChild"); // create new child element parentElem.replaceChild(newChildElem, oldChildElem); // replace old child element with new child element }Overall, the QDomElement replaceChild method is a useful function in the Qt Core library that allows developers to manipulate XML documents by replacing specific child elements with new elements.