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Calculating how many minutes there are between two times

I have a datagridview in my application which holds start and finish times. I want to calculate the number of minutes between these two times. So far I have got: ...
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Break parallel.foreach?

...e<...> before the one that invokes state.Break() are being processed and those coming after it are not? Although the former could be achieved somehow, I don't see how the latter would be possible at all. – Hendrik Wiese Mar 14 '13 at 12:29 ...
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Openssl is not recognized as an internal or external command

...integrated with Facebook. In one of Facebook's tutorials, I found this command: 15 Answers ...
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Casting interfaces for deserialization in JSON.NET

...ll take in JSON objects from various websites (think information scraping) and translate them into C# objects. I am currently using JSON.NET for the deserialization process. The problem I am running into is that it does not know how to handle interface-level properties in a class. So something of...
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Detect if homebrew package is installed

...rew packages are installed in the system. Is there a way to use a brew command to achieve that? 4 Answers ...
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Why is there an injected class name?

... refer to the current instantiation. See DR 176 for a change between C++98 and C++03 that clarified that. The idea of the injected class name was present in C++98, but the terminology was new for C++03. C++98 says: A class-name is inserted into the scope in which it is declared immediately aft...
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Create the perfect JPA entity [closed]

I've been working with JPA (implementation Hibernate) for some time now and each time I need to create entities I find myself struggling with issues as AccessType, immutable properties, equals/hashCode, ... . So I decided to try and find out the general best practice for each issue and write this ...
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What is the 'instanceof' operator used for in Java?

...);, animal instanceof Dog // false because Animal is a supertype of Dog and possibly less "refined". And, dog instanceof Cat // does not even compile! This is because Dog is neither a subtype nor a supertype of Cat, and it also does not implement it. Note that the variable used for dog above...
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Tuning nginx worker_process to obtain 100k hits per min

...vailable } worker_rlimit_nofile 20000; # Each connection needs a filehandle (or 2 if you are proxying) # Total amount of users you can serve = worker_processes * worker_connections more info: Optimizing nginx for high traffic loads ...
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How to store arbitrary data for some HTML tags

...n example: links which send an AJAX request to get the content of articles and then display that data in a div. Obviously in this example, I need each link to store an extra bit of information: the id of the article. The way I've been handling it in case was to put that information in the href link ...