QSqlDatabase close method error in DEBUG mode

[dan.niele]

Hello to everyone.

I'm stuck on an error from QSqlDatabase.

I'm modifying a project wrote by other developers.

Last working configuration was VC6 with QT4 library and everything worked, but when I try to port it to Qt creator using QT4 library i got an "unknown error" message from QT.

The error occurs when I try to call QSqlDatabase close method:

DB_MSAccess::DB_getProductInfo() 
{ 
openclose = m_RegisterDB.open(); // openclose return true, so the database is open 
m_RegisterDB.close(); 
}

DB_MSAccess::DB_getProductInfo() 
{ 
openclose = m_RegisterDB.open(); // openclose return true, so the database is open 
m_RegisterDB.close(); 
}

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The QSqlDatabase is initialized in the constructor class and is declared private into header file.

DB_MSAccess::DB_MSAccess() 
 
{ 
m_RegisterDB= QSqlDatabase::addDatabase("QODBC",MAIN_DB); 
m_RegisterDB.setDatabaseName (MAIN_DB); 
}

DB_MSAccess::DB_MSAccess() 

{ 
m_RegisterDB= QSqlDatabase::addDatabase("QODBC",MAIN_DB); 
m_RegisterDB.setDatabaseName (MAIN_DB); 
}

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I forget to mention that the error occurs only in DEBUG -step by step mode. If I run the code either in RELEASE or DEBUG the code works perfectly.

Anyone knows how to help me??

Thanks for your help