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Checking to see if a DateTime variable has had a value assigned
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I like this idea, but note that in the somewhat unlikely event that the DateTime variable has been assigned a value which happens to be the default value, this extension method will return the wrong result. The only way to avoid this is ...
What's wrong with foreign keys?
...enty of applications where you can get away with it, but it's not the best idea. You can't always count on your application to properly manage your database, and frankly managing the database should not be of very much concern to your application.
If you are using a relational database then it s...
Dynamically set local variable [duplicate]
...tions (Jython, IronPython, etc.) may not support it either.
This is a bad idea, though. How will you access the variables if you don't know their name? By locals()[xxx] probably. So why not just use your own dictionary rather than polluting locals() (and taking the chance of overwriting a variable ...
Member '' cannot be accessed with an instance reference
...r from Property1 (which is what you probably want to do). For a conceptual idea about what static is, see my other answer.
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Your project contains error(s), please fix it before running it
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It is a good idea in general to keep this error view around - and also to try to fix the warnings it shows.
– Heiko Rupp
Feb 10 '11 at 8:28
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Why can't I see the “Report Data” window when creating reports?
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I was also same problem in Visual Studio 2013, Then Suddenly got an Idea.. Click on Report to make focus on it.
Simple Press Alt+Ctrl+D
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How to update gradle in android studio?
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@DanielF close your project, then open the .idea/workspace.xml and remove the line <property name="show.do.not.ask.upgrade.gradle.plugin" value="2.3.3" /> (you might need to search for it). Save the file and open the project again.
– Rolf ...
What __init__ and self do on Python?
...called as a constructor in other OOP languages such as C++/Java. The basic idea is that it is a special method which is automatically called when an object of that Class is created
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MySQL pagination without double-querying?
...sider, it becomes inefficient very fast. Pre-calculated count maybe a good idea to look into.
Here's a good read on the subject:
http://www.percona.com/ppc2009/PPC2009_mysql_pagination.pdf
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Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
...fferent from x++, thus resulting in something not easy to read. Crockford idea is not about 'can I do it?' it's about 'how can I avoid errors?'
– ArtoAle
Sep 18 '12 at 22:37
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