System.Xml.XmlDocument.ReadNode C# (CSharp) Method

        public virtual XmlNode ReadNode(XmlReader reader)
        {
            XmlNode node = null;
            try
            {
                IsLoading = true;
                XmlLoader loader = new XmlLoader();
                node = loader.ReadCurrentNode(this, reader);
            }
            finally
            {
                IsLoading = false;
            }
            return node;
        }

 public static XmlNode[] ReadNodes(XmlReader xmlReader)
 {
     if (xmlReader == null)
         throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("xmlReader");
     XmlDocument doc = new XmlDocument();
     List<XmlNode> nodeList = new List<XmlNode>();
     if (xmlReader.MoveToFirstAttribute())
     {
         do
         {
             if (IsValidAttribute(xmlReader))
             {
                 XmlNode node = doc.ReadNode(xmlReader);
                 if (node == null)
                     throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(SR.GetString(SR.UnexpectedEndOfFile)));
                 nodeList.Add(node);
             }
         } while (xmlReader.MoveToNextAttribute());
     }
     xmlReader.MoveToElement();
     if (!xmlReader.IsEmptyElement)
     {
         int startDepth = xmlReader.Depth;
         xmlReader.Read();
         while (xmlReader.Depth > startDepth && xmlReader.NodeType != XmlNodeType.EndElement)
         {
             XmlNode node = doc.ReadNode(xmlReader);
             if (node == null)
                 throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(SR.GetString(SR.UnexpectedEndOfFile)));
             nodeList.Add(node);
         }
     }
     return nodeList.ToArray();
 }