connection entre asp.net et sql server

        //Declaration du reader
        SqlDataReader reader;
        //Declaration de la variable 
        SqlConnection Connection = new SqlConnection("database=LENOMDETABASE;server=LESERVEURDELABASE;User ID=USERQUIALESDROITSSURLABASE;Password=MOTDEPASSEDUUSERQUIALESDROITSSURLABASE;");

        //Variable contenant la requète
        string myInsertQuery = "Requete";
        
        SqlCommand myCommand = new SqlCommand(myInsertQuery, Connection);

        //Connexion 
        Connection.Open();
        //Execution de la commande
        reader = myCommand.ExecuteReader();
        //boucle qui parcourt les résultats
        while (reader.Read())
        {
            for (int i = 0; i < reader.FieldCount; i++)
            {
                ValReturn.Add(reader.GetSqlValue(i).ToString().Trim());
            }
        }
        //fermeture du reader
        reader.Close();
        //fermeture de la connection
        Connection.Close();