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What exactly are DLL files, and how do they work?
...bly. All in all, I'd think it's better to say that they solved the problem by applying very heavy restrictions on what DLLs a program's runtime will load (before it just gives up and asks for your help).
– Vladislav Martin
Apr 11 '17 at 0:40
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Guid.NewGuid() vs. new Guid()
...ormal math would suggest. Unless you deliberately screw with the algorithm by changing the time and messing with MAC addresses, in which case you should get one pretty quickly - but that's deliberately messing with the inputs.
– Jon Hanna
Aug 13 '12 at 16:23
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Ruby on Rails Server options [closed]
The whole issue of setting up a development server for my Ruby on Rails application confuses me. There are WEBrick, Mongrel, Passenger, Apache, Nginx and many more I am sure, and I don't really understand the different roles they play.
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Why is JsonRequestBehavior needed?
...safe to allow the get.
Further reading from my Wrox ASP.NET MVC3 book
By default, the ASP.NET MVC framework does not allow you to respond to
an HTTP GET request with a JSON payload. If you need to send JSON in
response to a GET, you'll need to explicitly allow the behavior by
using JsonRe...
Opening the Settings app from another app
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As mentioned by Karan Dua this is now possible in iOS8 using UIApplicationOpenSettingsURLString see Apple's Documentation.
Example:
Swift 4.2
UIApplication.shared.open(URL(string: UIApplication.openSettingsURLString)!)
In Swift 3:
U...
Storing Image Data for offline web application (client-side storage database)
...lmost all browsers) for blob download from web server
I went with XHR2-Lib by Phil Parsons, which is very much like JQUERY .ajax()
https://github.com/p-m-p/xhr2-lib
Storage
IndexedDB for IE and FireFox
Chrome: Polyfill (blob stored using FileSystem API, reference kept in IndexedDB) polyfill
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How do I vertically center text with CSS? [duplicate]
... CSS just sizes the <div>, vertically center aligns the <span> by setting the <div>'s line-height equal to its height, and makes the <span> an inline-block with vertical-align: middle. Then it sets the line-height back to normal for the <span>, so its contents will flow...
javac error: Class names are only accepted if annotation processing is explicitly requested
...
I was stumped by this too because I was including the .Java extension ... then I noticed the capital J.
This will also cause the "annotation processing" error:
javac myclass.Java
Instead, it should be:
javac myclass.java
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When restoring a backup, how do I disconnect all active connections?
...click Detach Database, it brings up a dialog with the active connections.
By clicking on the hyperlink under "Messages" you can kill the active connections.
You can then kill those connections without detaching the database.
More information here.
SQL Server Management Studio 2008
The interface has...
Does git return specific return error codes?
...eturn a status of 0 for complete success. Other status codes are determine by the app. There are 255 other codes which meanings depend on the app. See their man pages for details.
– shawnhcorey
Oct 29 '18 at 13:54
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