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Why are flag enums usually defined with hexadecimal values
...orld of base ten anymore. We're dealing with bits - the machine's world - and we're gonna play by its rules." Hexadecimal is rarely used unless you're dealing with relatively low-level topics where the memory layout of data matters. Using it hints at the fact that that's the situation we're in no...
What's this =! operator? [duplicate]
...
That's two operators, = and !, not one. It might be an obfuscated way of writing
a = !b;
if (a) {
// whatever
}
setting a to the logical inverse of b, and testing whether the result is true (or, equivalently, whether b was false).
Or it migh...
Android RatingBar change star colors [closed]
How can I change the star colors and size of the stars?
31 Answers
31
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How to avoid .pyc files?
... available
to Python programs as the
sys.dont_write_bytecode variable, and
Python code can change the value to
modify the interpreter’s behaviour.
Update 2010-11-27: Python 3.2 addresses the issue of cluttering source folders with .pyc files by introducing a special __pycache__ subfolder...
DbEntityValidationException - How can I easily tell what caused the error?
...s. You can catch the DbEntityValidationException, unwrap the actual errors and create a new DbEntityValidationException with the improved message.
Create a partial class next to your SomethingSomething.Context.cs file.
Use the code at the bottom of this post.
That's it. Your implementation will a...
asp.net mvc: why is Html.CheckBox generating an additional hidden input
...ed, form will still have value from hidden field. That is how ASP.NET MVC handles checkbox values.
If you want to confirm that, place a checkbox on form not with Html.Hidden, but with <input type="checkbox" name="MyTestCheckboxValue"></input>. Leave checkbox unchecked, submit form and ...
Is there a label/goto in Python?
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No, Python does not support labels and goto, if that is what you're after. It's a (highly) structured programming language.
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What MySQL data type should be used for Latitude/Longitude with 8 decimal places?
I'm working with map data, and the Latitude/Longitude extends to 8 decimal places. For example:
8 Answers
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How to wait for async method to complete?
... Very nice, thank you. I was scratching my head on a similar issue and the difference was to change void to Task just as you had said.
– Jeremy
Dec 11 '14 at 20:19
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Elastic Search: how to see the indexed data
I had a problem with ElasticSearch and Rails, where some data was not indexed properly because of attr_protected. Where does Elastic Search store the indexed data? It would be useful to check if the actual indexed data is wrong.
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