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Subject - Observer
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
The Mere Mortals Framework
Versions des environnements
Visual FoxPro:
VFP 8 SP1
OS:
Windows XP SP2
Database:
Visual FoxPro
Divers
Thread ID:
01041764
Message ID:
01041776
Vues:
31
Hi Alex,

I'm trying to dechiper 26578, but can't < g >

My idea was to try to use Update trigger on the table. However, it looks like the trigger fires before transaction is commited. So, my new idea, which I am going to try is this:

From the trigger enable a timer. The timer will run the code and then disable itself. That's an idea. Do you think, it would work?

>Hi 26578!
>
>One way would be to have the application respond to the presence of specific files in certain folders that you can use for messaging among instances.
>
>You could have an app running at a manager's machine watching this folder (there's a windows api for that, I recall) and then have that watcher raise events to which the main app responds.
>
>The users' apps would place files there that the manager's app would respond to.
>
>I think you can also achieve this with dcom, but am not sure if that works and/or how.
>
>Alex
>
>
>>Hi everybody,
>>
>>As I understand, subject-observer mechanism works inside the application. Is there a way to make it work accross the network? E.g. I have Manager's form. I want to update it every time one of the users updated information on his/her PC.
>>
>>That's one problem. What would be ideas to solve it?
>>
>>I have another problem. I have a complicated form with multiple biz objects. Some of them publish certain subject. I want to requery another form (the Manager's form I was talking in the first part of my message) when these biz objects save the information. My problem is that these biz objects are children of another biz object. Therefore the main transaction is not yet commited when OnStateChange method of one of these biz objects occurs. How can I solve this problem?
>>
>>Thanks a lot in advance.
If it's not broken, fix it until it is.


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