Generic List Distinct

Schuster Efigenio

Hi Guys,

I have a list with duplicate items and would list to remove duplicates.

I have tried several approaches and none of them seem to have worked.

Here is my code that I have to populate the list.

public class Skills

{

public string Name { get; set; }

}

XDocument xdoclist = XDocument.Load(new XmlNodeReader(xdoc4));

List<Skills> primaryProductSkills = (from xml in xdoclist.Elements("product_parent").Elements("product").Elements("comp").Elements("skill")
select new Skills

{

Name = xml.Element("skill").Value,

}).ToList();

Thanks

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes15y ago
Accepted answer
To use the Distinct() extension method, you'll need to implement the IEqualityComparer interface for your Skills class.

Check out this MSDN link (http://msdn.microsoft.com/en-us/library/bb348436.aspx) which contains an example showing how to do this for a custom class.
Schuster Efigenio15y ago
Thank you Vulpes.

This worked and the other extension method I had worked too I just wasn't looking in the right place. Both were slightly different but with the same result.

Thanks
Schuster Efigenio15y ago
Thank you Vulpes I will try this although I think I already have, will keep you posted.
Schuster Efigenio15y ago
Thankyou, I am going to add to the list so I require to remove duplicates.
Zoran Horvat15y ago
You can select distinct skills using XPath:

List primaryProductSkills = xdoclist.Elements.XPathEvaluate("product_parent/product/comp/skill/@text");

By default XPath evaluates only unique elements. After this query executes, List would contain only names, i.e. textual values of the skill nodes.

Zoran