April 2013
Intermediate to advanced
1700 pages
92h 51m
English
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NotSupportedException
NotSupportedException doesn’t indicate an implementation of an operation is not present; instead, it means the operation doesn’t make sense to implement. You might wonder why the operation isn’t just omitted in such a case, but often you don’t have a choice but to provide it when an interface is implemented or a base class has to be used.
Examples of the use of this exception type can be found in the System.IO namespace when dealing with Stream objects that do not support certain operations, such as Seek. It’s not uncommon for custom derived stream objects to support only a fraction of the base class’s functionality, hence warranting the use of NotSupportedException to indicate the missing functionality.
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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.