XML to string Self-closing element does not fire a EndElement event

gistfile1.cs

XmlTextReader objreader = new XmlTextReader("c:\\a.xml");
            StringBuilder strBuilXML = new StringBuilder();

            while (objreader.Read())
            {

                if (objreader.IsStartElement())
                {
                    if (objreader.IsEmptyElement)
                    {
                        Console.WriteLine("<{0}/>", objreader.Name);
			 strBuilXML.Append("<" + objreader.Name);
                                for (int attInd = 0; attInd < objreader.AttributeCount; attInd++)
                                {
                                    objreader.MoveToAttribute(attInd);
                                    strBuilXML.Append(" " + objreader.Name + "=");
                                    strBuilXML.Append("\"" + objreader.Value + "\"");
                                }
                                strBuilXML.Append(">");

			 strBuilXML.Append("</" + objreader.Name);
                                strBuilXML.Append(">");
                    }
                    else
                    {
                        switch (objreader.NodeType)
                        {

                            case XmlNodeType.Element:

                                strBuilXML.Append("<" + objreader.Name);
                                for (int attInd = 0; attInd < objreader.AttributeCount; attInd++)
                                {
                                    objreader.MoveToAttribute(attInd);
                                    strBuilXML.Append(" " + objreader.Name + "=");
                                    strBuilXML.Append("\"" + objreader.Value + "\"");
                                }
                                strBuilXML.Append(">");


                                break;
                            case XmlNodeType.Text: 

                                string value = objreader.Value;
                                if (string.IsNullOrEmpty(value))
                                {
                                    strBuilXML.Append("</" + objreader.Name);
                                    strBuilXML.Append(">");
                                    break;
                                }
                                else
                                    strBuilXML.Append(value);
                                break;

                            case XmlNodeType.EndElement: 

                                strBuilXML.Append("</" + objreader.Name);
                                strBuilXML.Append(">");

                                break;

                        }
                    }
                }

            }

            objreader.Close();
            Console.WriteLine(strBuilXML);