System.Xml.Tests.MyXsltExtension.distinct C# (CSharp) Méthode

        public XPathNodeIterator distinct(XPathNodeIterator nodeset)
        {
            Hashtable nodelist = new Hashtable();
            while (nodeset.MoveNext())
            {
                if (!nodelist.Contains(nodeset.Current.Value))
                {
                    nodelist.Add(nodeset.Current.Value, nodeset.Current);
                }
            }
            return new MyArrayIterator(new ArrayList(nodelist.Values));
        }
    }