July 2007
Intermediate to advanced
224 pages
4h 31m
English
book
Programming Microsoft® Composite UI Application Block and Smart Client Software Factory
by David S. Platt
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D. Controllers
To fulfill its function as a container, a WorkItem needs a place to hold its business logic. In the early days of CAB, this was often done by deriving a new class from WorkItem, such as BankTellerWorkItem, and placing the business logic on that class. Experience with the first CAB applications showed that this pattern allowed the WorkItem class to get too complex. Everything that a logical subapplication had to do or to hold was concentrated in just one class. It became the "God object," too large and complex to test or inspect, or even develop properly.
By the time SCSF came out, the design philosophy had shifted to recommend separating the holding functionality from the doing functionality. Since the WorkItem already contained ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.