MySqlConnection myConnection;       
myConnection = new MySqlConnection();
myConnection.ConnectionString = "database="+database+";server="+
 server+";user id="+user+";Password="+password;
try  {
    myConnection.Open();
}
catch (MySqlException MyException)  {
    Console.WriteLine("Connection error: MySQL code: "+
  MyException.Number +" "+
  MyException.Message);
}

try {            
   MySqlCommand myCommand = new MySqlCommand(
 "call error_test_proc(1)",
        myConnection
   );           
   myCommand.ExecuteNonQuery();
}
catch (MySqlException MyException)   {
   Console.WriteLine("Stored procedure error: MySQL code: " +
   MyException.Number + "  " +
   MyException.Message);
}