How do I create child elements using msxml parser? - c++

Question

I have a users.xml
<?xml version="1.0"?>
<Data>
<Users>
<User name="xyz" email="xyz#xyz.com">
<Tasks/>
</User>
</Users>
</Data>
I have got a reference to Users element using the following code
IXMLDOMDocumentPtr pXMLDom;
// code to load the xml dox
IXMLDOMElementPtr pXMLDocElement = NULL;
IXMLDOMNodeListPtr pXMLUsers = NULL;
//gets <Data>
pXMLDocElement = pXMLDom->GetdocumentElement();
//gets <Users>
pXMLUsers = pXMLDocElement->childNodes;
Now how do I create a child element User in Users element.
I have tried using createElement() on pXMLUsers, but it says IXMLDOMNodeListPtr has no member appendChild.
I don't know how to create a new element.
Thanks.

Answer 1

You cannot use the IXMLDOMNodeListPtr to append a child - it's just for iterating existing children.
You can use the IXMLDOMElementPtr directly to call pXMLDocElement->appendChild() to add a child element in your Document.

Answer 2

Ok, I've found a solution, thanks to TERACytE
IXMLDOMDocumentPtr pXMLDom;
// code to load the xml dox
//Creating <User>
MSXML2::IXMLDOMElementPtr pUser = pXMLDom->createNode(NODE_ELEMENT, "User", "");
//Creating <User name="">
MSXML2::IXMLDOMAttributePtr pName = pXMLDom->createAttribute("name");
pName->value = name;
//Creating <User email="">
MSXML2::IXMLDOMAttributePtr pEmail = pXMLDom->createAttribute("email");
pEmail->value = email;
//Adding name attrib to <User>
pUser->setAttributeNode(pName);
//Adding email attrib to <User>
pUser->setAttributeNode(pEmail);
//Creating <Tasks>
MSXML2::IXMLDOMElementPtr pTasks = pXMLDom->createNode(NODE_ELEMENT, "Tasks", "");
//Creating <Task>
MSXML2::IXMLDOMElementPtr pTask = pXMLDom->createNode(NODE_ELEMENT, "Task", "");
//Creating <Task name="">
MSXML2::IXMLDOMAttributePtr pTName = pXMLDom->createAttribute("name");
pTName->value = task;
//Creating <User status="">
MSXML2::IXMLDOMAttributePtr pStatus = pXMLDom->createAttribute("status");
pStatus->value = status;
//Adding name attrib to <User>
pTask->setAttributeNode(pTName);
//Adding status attrib to <User>
pTask->setAttributeNode(pStatus);
//Adding <Task> to <Tasks>
pTasks->appendChild(pTask);
//Adding <Tasks> to <User>
pUser->appendChild(pTasks);
//Selecting <Users>
MSXML2::IXMLDOMNodePtr pUsers = pXMLDom->selectSingleNode("/Data/Users");
//Adding <User> to <Users>
pUsers->appendChild(pUser);