System.Xml.XmlWellFormedWriter.DupAttrException C# (CSharp) Méthode

        static private XmlException DupAttrException(string prefix, string localName)
        {
            StringBuilder sb = new StringBuilder();
            if (prefix.Length > 0)
            {
                sb.Append(prefix);
                sb.Append(':');
            }
            sb.Append(localName);
            return new XmlException(SR.Xml_DupAttributeName, sb.ToString());
        }