C # parsing XML to DataSet and dataset to XML file functions

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Converts an XML object content string to a dataset        public static DataSet Convertxmltodataset ( String xmlData)         {             stringreader stream = null;             xmltextreader reader = null;             try            {                 dataset XmlDS = new DataSet ();                 stream = new StringReader ( XmlData);                 // Load from stream to xmltextreader                 reAder = new XmlTextReader (stream);                 xmlds.readxml (reader);                 return xmlds;             }            catch (System.Exception ex)              {                 throw ex;             }            finally             {        &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;IF (reader! = null)          &nBsp;           reader. Close ();            }         }         //converting an XML file to dataset         public static DataSet Convertxmlfiletodataset (string xmlfile)          {             StringReader stream = Null;            xmltextreader Reader = null;            try             {                 xmldocument XMLD = new XmlDocument ();                  xmld. Load (xmlfile);                  dataset xmlds = new DataSet ();                 stream = new StringReader (XMLD. INNERXML);                 // Load from stream to xmltextreader                 reader = new XmlTextReader (stream);                 xmlds.readxml (reader);                 //xmlds.readxml (xmlfile);                 return xmlds;             }    &nBsp;       catch (System.Exception ex)              {                 throw ex;            }             finally             {            &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;IF (reader! = null)                      reader. Close ();            }         }         //Converting a DataSet to an XML object string          public static string CONVERTDAtasettoxml (DataSet xmlds)         {             memorystream stream = null;             xmltextwriter writer = null;             try            {                 stream = new MemoryStream ();                 // Load from stream to xmltextreader                 writer = new XmlTextWriter (stream, Encoding.unicode);                  //writing to the file using the WriteXml method .           &nbsP;     xmlds.writexml (writer);                 int count = (int) stream. Length;                byte[] arr = new byte[count];                 stream. Seek (0, Seekorigin.begin);                 stream. Read (arr, 0, Count);                  unicodeencoding UTF = new UnicodeEncoding ();                 return UTF. GetString (arr). Trim ();            }             catch (System.exceptiOn ex)             {                 throw ex;             }             finally            {                 if (writer! = null)                      writer. Close ();            }         }         //Converting a DataSet to an XML file          public static void Convertdatasettoxmlfile (DataSet xmlds, string xmlfile)      &nBsp;   {            memorystream stream = Null;            xmltextwriter writer = null;             try             {                 stream = new MemoryStream ();                 //loading from stream to xmltextreader                 writer = new XmlTextWriter (stream, Encoding.unicode);                  // Write the file using the WriteXml method .                 xmlds.writexml (writeR);                 int count = ( int) stream. Length;                byte[] arr = new byte[count];                 stream. Seek (0, Seekorigin.begin);                 stream. Read (arr, 0, Count);                  //return Unicode-encoded text                  unicodeencoding UTF = new UnicodeEncoding ();                 streamwriter SW = new StreamWriter (xmlfile);                  SW. WriteLine ("<?xml version=\" 1.0\ "encoding=\" utf-8\ "?>");         &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;SW. WriteLine (UTF. GetString (arr). Trim ());                 sw. Close ();            }             catch (System.Exception ex)              {                 throw ex;            }             finally             {                 if (writer! = null)                      writer. Close ();            }         }

C # Parsing XML to DataSet and dataset to XML file functions