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Why can't I have abstract static methods in C#?
I've been working with providers a fair bit lately, and I came across an interesting situation where I wanted to have an abstract class that had an abstract static method. I read a few posts on the topic, and it sort of made sense, but is there a nice clear explanation?
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How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
In Firefox 3, the answer is 6 per domain: as soon as a 7th XmlHttpRequest (on any tab) to the same domain is fired, it is queued until one of the other 6 finish.
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What to return if Spring MVC controller method doesn't return value?
...eturn void, then you have to mark the method with @ResponseStatus(value = HttpStatus.OK) you don't need @ResponseBody
@RequestMapping(value = "/updateSomeData" method = RequestMethod.POST)
@ResponseStatus(value = HttpStatus.OK)
public void updateDataThatDoesntRequireClientToBeNotified(...) {
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Why doesn't c++ have &&= or ||= for booleans?
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Get records with max value for each group of grouped SQL results
How do you get the rows that contain the max value for each grouped set?
17 Answers
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How to make an OpenGL rendering context with transparent background?
Rendering contexts usually have a solid color on the background (black or whatever, see the image below):
9 Answers
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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
...text, even if it has not been caught and assigned to a variable.
Based on http://mattrandle.me/viewing-entityvalidationerrors-in-visual-studio/
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git log of a single revision
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Swift: Pass array by reference?
I want to pass my Swift Array account.chats to chatsViewController.chats by reference (so that when I add a chat to account.chats , chatsViewController.chats still points to account.chats ). I.e., I don't want Swift to separate the two arrays when the length of account.chats changes.
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How Can I Download a File from EC2 [closed]
...ere on how to access your instance with ssh if you haven't done already:
http://docs.aws.amazon.com/gettingstarted/latest/computebasics-linux/getting-started-deploy-app-connect-linux.html
When you are able to ssh as in the above doc, you will be able to use scp to copy the file.
Another option ...