SQL Connection

public class clsSQL
    {
        public string strConn()
        {
            string connString = @"Data Source=xxx.xxx.x.xx\SQLEXPRESS,1433;" +
                                "Network Library=DBMSSOCN;" +
                                "Initial Catalog=DB;" +
                                "User ID=sa;" +
                                "Password=xxxxxxxx;";

            return connString;
        }

        public bool isConnected(string connectionString)
        {
            bool bState = true;
            try
            {
                using (SqlConnection conn = new SqlConnection(connectionString))
                {
                    conn.Open();
                    if (conn.State == ConnectionState.Closed)
                        bState = false;
                }
            }
            catch(SqlException ex)
            {
                Console.WriteLine(ex.Message);
                bState = false;
            }
            return bState;
        }
    }

class Program
    {
        static void Main(string[] args)
        {
            clsSQL sql = new clsSQL();
            Console.WriteLine(sql.isConnected(sql.strConn()) ? "CONNECTED" : "NOT CONNECTED");
            Console.ReadLine();
        }
    }