I have a list how create xml

I would like to see if anyone can guide me on my first project.

This is to obtain a set of records from a SQL database and put them in Datagridview.

Charted records put them in the datagridview by a list, now I would like to pass these values ​​to a xml.

This is my code that I have so far

private void BtnView_Click (object sender, EventArgs e) { { List accountlist = new List (); string sql = "[Catalogocuentas]"; OConnection SqlConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["ContabilidadElectronicaConnection"].ConnectionString); Ocmd SqlCommand = new SqlCommand (sql, oConnection); oCmd.CommandType = CommandType.StoredProcedure; try { oConnection.Open (); using (SqlDataReader dr = oCmd.ExecuteReader (CommandBehavior.CloseConnection)) { while (dr.Read ()) { Accounts p = new Accounts (); p.AcctCode = dr ["AcctCode"] ToString ().; p.AcctName = dr ["AcctName"] ToString ().; p.U_CODAGRU = dr ["U_CODAGRU"] ToString ().; p.U_natu = dr ["U_natu"] ToString ().; accountlist.Add (p);

                     } 
                 } 
             } 
             catch (Exception ex) 
             {
                 MessageBox.Show ("Error \ n \ nDescription Tecnica occurred: \ n" + ex.ToString (), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 
             } 
             dataGridView1.DataSource = accountlist; 

         } 
     } 

     private void Btncuentas_Click (object sender, EventArgs e) 
     {


         XmlElements = new XElement XElement ("Accounts" Cuentas.Select (i => new XElement ("accountlist", i))); 
         System.Console.Write (xmlElements); 
         System.Console.Read ();