tutto esatto sypher
solo che sto facendo un web method-->un servizio web
	codice:
	
  <WebMethod()> _
       Public Function RestituisciDataReader(ByVal Strsql As String) As Odbc.OdbcDataReader
        Conn.ConnectionString = Strconn
        Conn.Open()
        Dim res As Odbc.OdbcDataReader
        Dim Com As New Odbc.OdbcCommand
        Dim i As Integer
        Com.CommandType = CommandType.Text
        Com.CommandText = Strsql
        Com.Connection = Conn
        res = Com.ExecuteReader
        res.Read()
        Return res
       
        res.Close()
        Conn.Close()
    End Function
 
e mi da errore riferimento a oggetto non impostato su istanza di oggetto