Datatable to XML in C#

Question

DataSet dts = new DataSet();

dts.Tables.Add(dt);

TextWriter tw = new StringWriter();

XmlTextWriter xtw = new XmlTextWriter(tw);

dts.WriteXml(xtw, XmlWriteMode.IgnoreSchema);

stXML = tw.ToString(); //string XML Contains the XML Content

xtw.Close();

tw.Dispose();