Hi John, I get your point. I don't see a need to add and mix those totals, but if there would be one, I would add a method to return the grand total instead of using each property. However, your reply made me think about the need for "get" properties for the totals. Normally the batch would have to be closed and after that I would need to get the totals for reconciliation with the bank. While the batch is closed, the object would reject any new transaction, so those totals would not change.
Anyway, thank you for your reply. Regards, Eddie -----Original Message----- From: Discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] Behalf Of John Brett Sent: Friday, August 11, 2006 3:38 AM To: [email protected] Subject: Re: [ADVANCED-DOTNET] Multithread-safe classes Hi Eddie, As an observation, "making the class multi-thread safe" as you're describing won't help a caller doing something like: double totalDebt; totalDebt= batch.VisaTransactionsAmount + batch.AmexTransactionsAmount + batch.MCardAmount; Locking access to each individual property on access won't stop the object itself being updated part-way through evaluation of the summation. Gregory's suggestions of using a value-type (which then represents a snapshot of the state at a specific moment in time) would work. Otherwise, you'll need to consider in detail how the object is used and not just solve the "MT problem" in isolation. John =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
