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Creating a temporary directory in Windows?

... This seems a little dangerous. In particular, there's a chance (small, but non-zero, right?) that Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()) will return the name of a directory that already exists. Since Directory.CreateDirectory(tempDirectory) won't throw an exception if te...
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How can I make a .NET Windows Forms application that only runs in the System Tray?

...of creating an application that only ever exists in the System Tray. Basically change the Application.Run(new Form1()); line in Program.cs to instead start up a class that inherits from ApplicationContext, and have the constructor for that class initialize a NotifyIcon static class Program { /...
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Preview an image before it is uploaded

...file (image) before it is uploaded. The preview action should be executed all in the browser without using Ajax to upload the image. ...
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Shortcuts in Objective-C to concatenate NSStrings

...option has many upvotes, I think this is the best answer if you don't know all your strings upon construction. Every time you append a string, you're creating a lot of overhead. Using a mutable string removes that problem. – Eli Dec 22 '09 at 1:25 ...
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Can't compile project when I'm using Lombok under IntelliJ IDEA

...ors. For IDEA 2019.2.1, depending on how the project is configured, installing the Project Lombok plugin may not be sufficient. Here is another way to use Project Lombok with IntelliJ IDEA: Visit https://projectlombok.org/download Download the JAR file into the project lib directory (e.g., $HOM...
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How can I sort a List alphabetically?

...t; object that contains country names. How can I sort this list alphabetically? 13 Answers ...
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Pretty printing XML in Python

...l get you pretty xml, but note that what comes out in the text node is actually different than what came in - there are new whitespaces on text nodes. This may cause you trouble if you are expecting EXACTLY what fed in to feed out. – Todd Hopkinson Jan 12 '12 a...
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Inputting a default image in case the src attribute of an html is not valid?

...body> </html> Since the first image doesn't exist, the fallback (the sprites used on this web site*) will display. And if you're using a really old browser that doesn't support object, it will ignore that tag and use the img tag. See caniuse website for compatibility. This element...
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CSS scrollbar style cross browser [duplicate]

... @jmendeth Well, I did not take the time to test it all myself, but according to this page it should work for IE, Chrome, Firefox. And according to this forum thread the IE style rules also work(ed?) in Opera, but only on the main page scrollbars. Not on those for textarea or ...
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How to “pretty” format JSON output in Ruby on Rails

... the code above in a controller, you'll have tons of useless whitespace in all responses, which isn't even needed for client-side debugging as any tools worth their salt (eg. Firebug) already handle prettyprinting JSON. – lambshaanxy Sep 20 '11 at 3:37 ...