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);
}