Is it possible to save the current XMLReader Position for later use?

I work in a project where an external system writes xmls (without a defined namespace) and we need to read them to find nodes with some special values:

• When the value is not ready, we read again after a few minutes.
• In other case, we process the node (attributes, values, etc.)

So, I think this code can help you:

var input1 = @"<root> <ta>   <XGLi6id90>774825484.1418393</XGLi6id90>   <VAfrBVB>     <EG60sk>1030847709.7303829</EG60sk>     <XR>NOT_READY</XR>   </VAfrBVB> </ta> <DxshpR>1123</DxshpR>

var input2 = @"<root> <ta>   <XGLi6id90>774825484.1418393</XGLi6id90>   <VAfrBVB>     <EG60sk>1030847709.7303829</EG60sk>     <XR>99999999</XR>   </VAfrBVB> </ta> <DxshpR>1123</DxshpR>

var stream1 = new MemoryStream(Encoding.UTF8.GetBytes(input1));var stream2 = new MemoryStream(Encoding.UTF8.GetBytes(input2));stream1.Position = 0;stream2.Position = 0;var position1 = DoWork(stream1, new Position());var position2 = DoWork(stream2, position1);    public static Position DoWork(Stream stream, Position position)    {        using (XmlTextReader xmlTextReader = new XmlTextReader(stream))        {            using (XmlReader xmlReader = XmlReader.Create(xmlTextReader, xmlReaderSettings))            {                // restores the last position                 xmlTextReader.SetPosition(position);                System.Diagnostics.Debug.WriteLine(xmlReader.Value); // Second time prints 99999999                while (xmlReader.Value != "NOT_READY" && xmlReader.Read())                {                    // a custom logic to process nodes....                }                // saves the position to process later ...                position = xmlTextReader.GetPosition();                System.Diagnostics.Debug.WriteLine(xmlReader.Value); // First time prints NOT_READY            }        }        return position;    }}public class Position{    public int LinePosition { get; set; }    public int LineNumber { get; set; }}public static class XmlReaderExtensions{    public static void SetPosition(this XmlTextReader xmlTextReader, Position position)    {        if (position != null)        {            while (xmlTextReader.LineNumber < position.LineNumber && xmlTextReader.Read())            {            }            while (xmlTextReader.LinePosition < position.LinePosition && xmlTextReader.Read())            {            }        }    }    public static Position GetPosition(this XmlTextReader xmlTextReader)    {        Position output;        if (xmlTextReader.EOF)        {            output = new Position();        }        else        {            output = new Position { LineNumber = xmlTextReader.LineNumber, LinePosition = xmlTextReader.LinePosition };        }        return output;    }}

Important and obviously, it will work only when the structure of the xml (line breaks, nodes, etc.) is always the same. In other case, it will not work.