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Best way to check if object exists in Entity Framework?
...tes.
In short, if you have timestamped raw data coming in, pretty much in order, then using a memory cache might help with the record duplication check.
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Character Limit in HTML
...ould like to point out that client-side validation (HTML code, javascript, etc.) is never enough. Also check the length server-side, or just don't check at all (if it's not so important that people can be allowed to get around it, then it's not important enough to really warrant any steps to prevent...
iPhone app in landscape mode, 2008 systems
...simply sits there and just holds your various views (happyThing, newThing, etc). Hope it helps!
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Why does the use of 'new' cause memory leaks?
...cleaned up automatically.
You need to pass a pointer to it to delete in order to clean it up:
However, your second example is worse: you're dereferencing the pointer, and making a copy of the object. This way you lose the pointer to the object created with new, so you can never delete it even ...
How to use enums as flags in C++?
...nimalFlags>(static_cast<int>(a) | static_cast<int>(b));
}
Etc. rest of the bit operators. Modify as needed if the enum range exceeds int range.
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Why is DarkGray lighter than Gray?
...e right shade is to just use: #222 (very dark) #333 (dark) #444 (medium) etc.. I find it almost as distictive as 1, 2, 3
– David
Jul 5 '16 at 7:46
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What is a good choice of database for a small .NET application? [closed]
...file corresponding to the language you are using in your program (C++, C#, etc). There are no other services or programs required. Also, it should work on a network with concurrent users. We have a copy up and running on a server where I work and it works great. You can look more into concurrency he...
C# Interfaces. Implicit implementation versus Explicit implementation
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Implicit definition would be to just add the methods / properties, etc. demanded by the interface directly to the class as public methods.
Explicit definition forces the members to be exposed only when you are working with the interface directly, and not the underlying implementation. This...
What to do about a 11000 lines C++ source file?
...ck out small areas of isolated functionality and extract these as types in order to delegate the responsibility.
In any case, it sounds like a major project, so good luck :)
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Postgresql query between date ranges
...fied; just add exactly one month. No messing about with 28th, 30th, 31st, etc.
This structure also has the advantage of being able to maintain use of indexes.
Many people may suggest a form such as the following, but they do not use indexes:
WHERE
DATEPART('year', login_date) = 2014
...