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Entity Framework: “Store update, insert, or delete statement affected an unexpected number of rows (

...e original value of every field in the row, and if 0 rows are affected it knows something's gone wrong. The idea behind it is that you won't end up overwriting a change that your application didn't know has happened - it's basically a little safety measure thrown in by .NET on all your updates. If...
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Difference between session affinity and sticky session?

... Found that the content of the above link (no longer available now) has been moved to archive.li/SG4fA It basically lists down the various persistence types supported by the F5 load balancer. – aveek Jul 29 '18 at 19:27 ...
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What is a singleton in C#?

...plementing the Singleton Pattern in C#" covering most of what you need to know - including some good advice regarding thread safety. To be honest, It's very rare that you need to implement a singleton - in my opinion it should be one of those things you should be aware of, even if it's not used too...
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What is the advantage of using abstract classes instead of traits?

... performance overhead. However, you should make this choice only if you know that the trait in question constitutes a performance bottleneck and have evidence that using a class instead actually solves the problem. If you still do not know, after considering the above, then start by mak...
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How to use ConcurrentLinkedQueue?

...<YourObject> queue = new ConcurrentLinkedQueue<YourObject>(); Now, wherever you are creating your producer/consumer objects, pass in the queue so they have somewhere to put their objects (you could use a setter for this, instead, but I prefer to do this kind of thing in a constructor): ...
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PHP Fatal error: Cannot redeclare class

Does anyone know what can cause this problem? 18 Answers 18 ...
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setuptools vs. distutils: why is distutils still a thing?

...used in many cases with some popular legacy programs. And as you probably know changing these sorts of things in legacy programs can be quite a pain and come with quite a few problems, for example incompatibilities, which would then lead to the developer having to rewrite the source code. So there i...
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How to delete .orig files after merge from git repository?

...e how .orig files are checked in my git repository during merge, which are now displayed in modified and un-tracked sector. But I don't want this files anymore in my repository. How to do that. ...
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Fast and Lean PDF Viewer for iPhone / iPad / iOS - tips and hints?

...effective PDF viewer, when you require only limited functionality, you can now (iOS 4.0+) use the QuickLook framework: First, you need to link against QuickLook.framework and #import <QuickLook/QuickLook.h>; Afterwards, in either viewDidLoad or any of the lazy initialization methods: QLPr...
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Properly removing an Integer from a List

... I don't know about 'proper' way, but the way you suggested works just fine: list.remove(int_parameter); removes element at given position and list.remove(Integer_parameter); removes given object from the list. It's because VM a...