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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...
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Multiple submit buttons in an HTML form

Let's say you create a wizard in an HTML form. One button goes back, and one goes forward. Since the back button appears first in the markup when you press Enter , it will use that button to submit the form. ...
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Is it better to return null or empty collection?

... an empty enumerable/collection. It prevents the aforementioned nonsense, and prevents your car getting egged by co-workers and users of your classes. When talking about properties, always set your property once and forget it public List<Foo> Foos {public get; private set;} public Bar() { ...
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Android device chooser - My device seems offline

I have developed an application and i was planning to deploy it to my HTC Desire. I have installed USB driver. I turned on USB debugging on the phone and choosed charge only when phone plugged-in. When I run application Android device chooser show my device offline. I am stuck at this point. Any hel...
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How can I calculate the number of lines changed between two commits in git?

...rather than specifying commit ranges, just select commits since last week) and --no-merges (merge commits don't actually introduce changes), as well as the pretty output options (--pretty=oneline, short, medium, full...). Here's a one-liner to get total changes instead of per-commit changes from gi...
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How to merge 2 List and removing duplicate values from it in C#

I have two lists List that I need to combine in third list and remove duplicate values from that lists 5 Answers ...
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How do I view all commits for a specific day?

I've already looked at the relevant docs from git-scm.com and gitref.org , but I can't seem to figure this out. 5 Answe...
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How to remove from a map while iterating it?

... The standard associative-container erase idiom: for (auto it = m.cbegin(); it != m.cend() /* not hoisted */; /* no increment */) { if (must_delete) { m.erase(it++); // or "it = m.erase(it)" since C++11 } else { ...
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How to get a complete list of object's methods and attributes?

...ble attributes, nothing more. You could though filter callable attributes, and, using the inspect module determine the class methods, methods or functions. share | improve this answer | ...
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How do I abort/cancel TPL Tasks?

In a thread, I create some System.Threading.Task and start each task. 12 Answers 12 ...