c++ Mysql, can not close a Mysql connection - mysql

Question

I have a function that receives parameters (schema name, column name etc) and updates a Mysql table, the problem is that when I use two Mysql commands inside this function (below), one to set the schema and one to update the table, the Close connection command at the end `(conDataBase3->Close();) does not work.
I am checking the number of open connections in the Mysql console (SHOW FULLPROCESSLIST) before and after running the function. any solutions or explanations? thanks
int simple_1::update_table_with_value(gcroot<String^ > schema, gcroot<String^ > table_name, int numerator, gcroot<String^ > field_to_update, double value_to_update)
{
gcroot<MySqlConnection^ > conDataBase3;
conDataBase3 = gcnew MySqlConnection(constring);
conDataBase3->Open();
try{
String ^ schema_name = "Use " + schema + " ;";
MySqlCommand ^cmdDataBase3 = gcnew MySqlCommand(schema_name, conDataBase3);
MySqlCommand ^cmdDataBase4 = gcnew MySqlCommand(schema_name, conDataBase3);
cmdDataBase3->ExecuteNonQuery();
String ^ temp1 = "UPDATE ";
String ^ temp2 = table_name;
String ^ temp3 = " SET ";
String ^ temp4 = field_to_update;
String ^ temp6 = "=(#value1) WHERE numerator = (#value2)";
String ^ temp8 = temp1 + temp2 + temp3 + temp4 + temp6;
// end of the writing part
cmdDataBase4 = gcnew MySqlCommand(temp8, conDataBase3);
cmdDataBase4->Parameters->AddWithValue("#value1", value_to_update);
cmdDataBase4->Parameters->AddWithValue("#value2", numerator);
cmdDataBase4->Prepare();
cmdDataBase4->ExecuteNonQuery();
}//try
catch (Exception^ ex)
{
System::Windows::Forms::MessageBox::Show(ex->Message);
}
conDataBase3->Close();
int answer = 0;
return (answer);
}

Answer 1

ok found the answer, I needed to disable the pooling option otherwise closing the connection still keeps the socket open..
found it here: http://bugs.mysql.com/bug.php?id=24138 see the last 2 lines.
The way to disable the pooling :
http://www.connectionstrings.com/mysql-connector-net-mysqlconnection/disable-connection-pooling/