How to create xml on a fly

Can some body to help with xml tree creation on a fly. How can I add node?

Thanks.

What environment are you working in?

I'm not the most experienced .NET programmer you'll find around here, I'm sure, but I'd start with the XmlDataDocument object documentation, and grow from there. I designed a fairly simple schema and a program to update a file based on that schema with very litte trouble in VS.NET, and I hadn't worked with it before...

I'd get very familiar with the documentation and how to find stuff that you need... I'm not quite there yet, but I'm learning.

(I'm mostly a web guy, but have been doing some RAD lately as well.)

System.Xml.XmlDocument/MSXML2.DOMDocument

myDoc.LoadXML(String xml):
loads a xml document out of an string

myDoc.Load(String filename);
loads a xml doc from a file

myDoc.Save(String filename);
saves a xml doc to a file

---

myDoc.CreateElement(String name)
myDoc.CreateAttribute(String name)
myDoc.CreateComment(String cm)
...
Creates the different types of nodes

---

Output is different between MSXML4 and MSXML.Net:

MSXML4: myDoc.xml
MSXML.Net: myDoc.OuterXml

Returns this doc as String

Attributes:
myNode.setAttribute(name, value);
myNode.getAttribute(name);

Nodes:
myNode.AppendChild(node);
myNode.ReplaceChild(new, old);
myNode.InsertAfter(new, ref); // only MSXML.Net
myNode.InsertBefore(new, ref);

and for node navigation:

myNode.nextSibling: returns the node right in the list
myNode.previousSibling: returns the node left in the list
myNode.parentNode: returns the parent node
myNode.childNodes: returns all child nodes

Example C#:

XmlDocument myDoc = new XmlDocument();

XmlElement myEle = myDoc.CreateElement("root");
for (int i = 0; i < 3; i++) {
XmlElement myChild = myDoc.CreateElement("child");
myChild.SetAttribute("index", i);
myEle.AppendChild(myChild);
}

Console.WriteLine(myEle.OuterXml);

-> output:
<root><child index="1" /><child index="2" /><child index="3" /></root>

Example VB6:

Dim myDoc As DOMDocument
Set myDoc = new DOMDocument

Dim myEle As IXMLDOMElement
Dim myChild As IXMLDOMElement

Set myEle = myDoc.CreateElement("root")

Dim i As Long
For i = 0 To 3
Set myChild = myDoc.CreateElement("child")
myChild.SetAttribute "index", i
myEle.AppendChild(myChild)
Next

Debug.Print myDoc.xml

--> output same as above.

See? It's very easy once you get the main methods since it's always the same (and btw - for the DHTML coders out there...doesn't this remind you on something? ;-) the javascript/html doc is *exactly* the same thing)

Thanks a lot!
This is a greatest explanation I could expact!