如何使用msxml解析器创建子元素？

Question

我有一个users.xml

<?xml version="1.0"?>
<Data>
    <Users>
        <User name="xyz" email="xyz@xyz.com">
                    <Tasks/>
        </User>
    </Users>
</Data>

我使用以下代码

引用了用户元素

IXMLDOMDocumentPtr pXMLDom;

// code to load the xml dox

IXMLDOMElementPtr pXMLDocElement = NULL;
IXMLDOMNodeListPtr pXMLUsers = NULL;

//gets <Data>
pXMLDocElement = pXMLDom->GetdocumentElement();

//gets <Users>
pXMLUsers = pXMLDocElement->childNodes;

现在如何在用户元素中创建子元素用户。

我尝试在createElement()上使用pXMLUsers，但它说IXMLDOMNodeListPtr has no member appendChild。

我不知道如何创建新元素。

感谢。

Answer 1

您不能使用IXMLDOMNodeListPtr附加孩子 - 它只是为了迭代现有的孩子。

您可以直接使用IXMLDOMElementPtr致电pXMLDocElement->appendChild()在您的文档中添加子元素。

Answer 2

好的，我找到了一个解决方案，感谢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);