using System;

using System.Linq;

using System.Collections;                   

using System.Collections.Generic;       

using System.Data;

using System.Data.Linq;

using System.Data.DataSetExtensions;

using System.Xml;

using System.IO;

using System.Xml.Linq;

public class Program

{

    public static void Main()

    {

        string input = @"<MonitoringApplication><Configuration><WebService><HttpUser>User</HttpUser><HttpPassword>Password</HttpPassword></WebService><Application><Server>http://localhost</Server><ServerPort>9000</ServerPort></Application></Configuration></MonitoringApplication>";

        var doc = XDocument.Parse(input);

        doc.Descendants("HttpUser").First().Value.Dump();

    }

}