March 2013
Intermediate to advanced
224 pages
5h 17m
German
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Events
Wenn
man Delegates nutzt, gibt es zwei Rollen, die sehr häufig im Spiel sind:
Broadcaster und Subscriber. Der Broadcaster ist ein Typ, der ein Delegate-Feld enthält. Er
entscheidet, wann ein Broadcast verschickt werden soll, indem er das Delegate aufruft. Die
Subscriber sind die Zielmethodenempfänger. Ein
Subscriber entscheidet, von wann bis wann er zuhört, indem er += und -= für das Delegate des
Broadcasters verwendet. Ein Subscriber weiß nichts von anderen Subscribern, kommt mit
ihnen aber auch nicht in Konflikt.
Events sind ein Sprachfeature, das dieses Muster formalisiert. Ein event ist ein Konstrukt, das nur genau die Untermenge an Delegate-Features bereitstellt, die für das Broadcaster/Subscriber-Modell notwendig sind. Der Hauptzweck ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.