Editing root name using XmlDocument

[sridev]

hi,

i am new to xml can any one plz tell me how to change the root name in
a xml.
<NewDataSet>
- <PersonInfo>
<ID>3123</ID>
<Person>Mohan </Person>
</PersonInfo>
- <PersonInfo>
<ID>3124</ID>
<Person>Ram</Person>
</PersonInfo>
</NewDataSet>

how to change <NewDataSet> to some other name using XmlDocument .....
plz help me

[AndrewF]

hi Sridev,

I'm assuming you are using C# here as you mentioned XmlDocument object
by VB.NET uses same basic functionality. You can't by default change
the name of an already existing node, this is a limitation of the
XMLDOM that has been implemented, once created the node name is read
only.

But all you have to do is create a new one in the same context, and add
all of the other's children to it.

Here's your pseudo code.

XmlDocument doc = new XmlDocument();
doc.Load(file); // if it is the string then use doc.LoadXml(str ing);

then you do this:

XmlNode docroot = doc.DocumentEle ment;

// documentElement you see is a special property but is actually
returns an XmlNode. Once you have an XmlNode you can do anything you
want to it the same as any other node. Don't forget it passes byRef as
well so any edits you make will occur on the live document.

// so now we create the new node:

XmlNode newnode = doc.CreateEleme nt("the new name here");

// now we get all the root node children and add them to this.

foreach (XmlNode child in docroot.ChildNo des) {

newnode.AppendC hild(child);
}

//then all we do is remove the reference to the old docroot with the
new one.

doc.DocumentEle ment = newnode;

// done.

Cheers
AndrewF