无法使用linq to xml c＃从xml文档中删除根节点

Question

Actullay, I need to get all elements except root node from first xml document and so that I could insert them as child nodes to an element(that has same name as a previous doc's root name) in a new document. So I have tried various ways to achieve it, one of them is removing the root node of first and then trying to add elements to a new one's as given below:

I have tried the following but could not achieve it.

XDocument testDoc = XDocument.Parse(Mydocument);
testDoc.Descendants().Where(e => e.Name.LocalName == "rootName").Select(m=>m).Single().Remove();
var resultDoc = testDoc;

The above code is giving me an empty "{}" result.

my xml document looks something like the below one's:

 <rootName xsi:schemaLocation="" xmlns:xsi="" xmlns="">
 <main>
 <child>
 </child>
 <anotherchild>
 </anotherchild>
 </main>
 </rootName>

And another way is getting all the elements of first document as the following:

  var resultDoc = testDoc.Descendants(ns + "rootName").Elements();

the above statement is giving me the list of elements in the "testDoc" which I need to do something like below, I am clueless:

 <AnotherDocument xsi:schemaLocation="" xmlns:xsi="" xmlns="">
 <firstNode>
 <rootName>

 <main>
 <child>
 </child>
 <anotherchild>
 </anotherchild>
 </main>

 </rootName>
 </firstNode>

Please let me know how to insert those elements in a new document as above if I am correct else let me know the way to resolve this issue. Thanks in advance.

Answer 1

You can replace content of rootName element in another document with elements from first document root:

var xDoc = XDocument.Parse(Mydocument);
var anotherXDoc = XDocument.Load("anotherdata.xml");
XNamespace ns = "http://..."; // your xml namespance
var rootName = anotherXDoc.Descendants(ns + "rootName").First();
rootName.ReplaceNodes(xDoc.Root.Elements());

Answer 2

By this page_nodes gets all nodes now you can used all node by for each loop

 var page_nodes = from p in xdoc.Descendants.Where(e => e.Name.LocalName == "rootName").Select(m=>m).Single().Remove() select p;

foreach (var page_node in page_nodes)
 {
    //Do stuff
 }

Answer 3

Wouldn't removing a root node, remove all its child nodes as well? The result you are getting is to be expected I think. You should probably get all the children of the root and copy them to your new document.