How to generate the xml nodes programatically?

Try this:

using System;

using System.Xml.Linq;

class Program

{

static void Main()

{

XElement entry = new XElement("Entry");

entry.Add(new XAttribute("Test", "1"));

entry.Add(new XAttribute("Function", "44"));

XElement condition = new XElement("Condition");

condition.Add(new XAttribute("Type", "Customer failsafe"));

condition.Add(new XAttribute("Value", "403101"));

entry.Add(condition);

// display on console

Console.WriteLine(entry);

// or to save as an XML file

entry.Save("jithendra.xml");

Console.ReadKey();

}