using System;

using System.Xml.Linq;

using System.Linq;

using System.Xml;

public class Program

{

    public static void Main()

    {

        XElement linkedInfo = XElement.Parse(@"<Property name=""ID"" value=""thevalueineed""/>");

        var ID1 = from el in linkedInfo.DescendantsAndSelf("Property") 

            where el.Attribute("name").Value == "ID" 

            select el.Attribute("value").Value;

​

        Console.WriteLine("ID1: {0}", ID1.First());

​

        var ID2 = from el in linkedInfo.DescendantsAndSelf("Property") 

         where (string)el.Attribute("name") == "ID" 

         select el.Attributes("value");

        Console.WriteLine("ID2: {0}", ID2.First());

​

        var ID3 = from el in linkedInfo.DescendantsAndSelf("Property") 

         where (string)el.Attribute("name") == "ID" 

         select (string)el.Attribute("value");  

        Console.WriteLine("ID3: {0}", ID3.First());

    }

}