Remove duplicates for list object

Question

Hi,
I have retrieved all the xml node values in List<object>. Now, I want to remove all the duplicates objects from that list.
Example:
If the object has n properties, I should remove only duplicate objects that have same values in all the n properties not just one property as ID or name. Please let me know how to achieve this. Preferably using LINQ. 
Thank you.
Regards,
Kiran

Answer 1

You can use a GroupBy.  I took the code from last posting
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
using System.IO;
namespace ConsoleApplication1
class Program
static void Main(string[] args)
string file1 = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>" +
"<Methods>" +
"<Method>" +
"<ID>1234</ID>" +
"<Name>manager</Name>" +
"<Path>path1</Path>" +
"</Method>" +
"<Method>" +
"<ID>5678</ID>" +
"<Name>manager</Name>" +
"<Path>path2</Path>" +
"</Method>" +
"<Method>" +
"<ID>5678</ID>" +
"<Name>manager</Name>" +
"<Path>path2</Path>" +
"</Method>" +
"</Methods>";
string file2 = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>" +
"<Methods>" +
"<Method>" +
"<Path>path1</Path>" +
"<Description>text</Description>" +
"</Method>" +
"<Method>" +
"<Path>path2</Path>" +
"<Description>text</Description>" +
"</Method>" +
"</Methods>";
string file3 = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>" +
"<Methods>" +
"</Methods>";
StringReader reader = new StringReader(file1);
XDocument doc1 = XDocument.Load(reader);
reader = new StringReader(file2);
XDocument doc2 = XDocument.Load(reader);
reader = new StringReader(file3);
XDocument newXDoc = XDocument.Load(reader);
var results = from e1 in doc1.Descendants().Elements("Method")
join e2 in doc2.Descendants().Elements("Method")
on e1.Element("Path").Value equals e2.Element("Path").Value
select new XElement("Method", new object[] { e1.Element("ID"), e1.Element("Name"), e2.Element("Description") });
var results2 = results.AsEnumerable()
.GroupBy(x => x.Element("ID").Value);
var results3 = results2.AsEnumerable()
.Select(x => x.Take(1));
newXDoc.Descendants("Methods").Last().Add(results3);
jdweng