DEFINE CLASS

Question

What is the difference between Custom and Session class

DEFINE CLASS CDIntfEvents AS Custom OLEPUBLIC

DEFINE CLASS CDIntfEvents AS Session OLEPUBLIC

Can I see a difference between these two lines

Answer 1

Yes, the difference exists: Session class is a Custom class havng its own data session.

More is e.g. here:

http://msdn.microsoft.com/en-us/library/fy7ybd0a(VS.80).aspx

http://msdn.microsoft.com/en-us/library/kezh6ea5(VS.80).aspx

 http://support.microsoft.com/kb/248116

http://rickschummer.com/blog/2007/08/understanding-session-object-behavior.html

Answer 2

Hi,

AFAIK a session class can only be instanciated programmatically. This class is not available in design-mode. In addition, session has only a view Properties and methods as it is created to hold a datasession.

The custom object can be used programmatically and during design time. It holds the complete spectrum of properties and methods as most of the other 'fat' controls do.

If you are looking for an class that is really empty, without any methods and properties, have a look at the 'empty' class (only available programmatically).

-> oMyEmptyClass = NEWOBJECT([empty])

---

Gruss / Best regards -Tom 010101100100011001010000011110000101001001101111011000110110101101110011