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Encrypt and decrypt a string in C#?

... EDIT 2013-Oct: Although I've edited this answer over time to address shortcomings, please see jbtule's answer for a more robust, informed solution. https://stackoverflow.com/a/10366194/188474 Original Answer: Here's a working example derived from the "RijndaelManaged Class" documentation and the...
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CSS: 100% width or height while keeping aspect ratio?

...e provide some more information about what you're specifically trying to accomplish and I'll try to help more! --- EDIT BASED ON FEEDBACK --- Are you familiar with the max-width and max-height properties? You could always set those instead. If you don't set any minimum and you set a max height and...
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'\r': command not found - .bashrc / .bash_profile [duplicate]

... When all else fails in Cygwin... Try running the dos2unix command on the file in question. It might help when you see error messages like this: -bash: '\r': command not found Windows style newline characters can cause issues in Cygwin. The dos2unix command modifies newline char...
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Using .NET, how can you find the mime type of a file based on the file signature not the extension

...g an appropriate MIME type from binary data. The final result depends on a combination of server-supplied MIME type headers, file extension, and/or the data itself. Usually, only the first 256 bytes of data are significant. So, read the first (up to) 256 bytes from the file and pass it to FindMim...
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How do I create a copy of an object in PHP?

... To correct a common misconception (I think even the PHP docs get it wrong!) PHP 5's objects are not "passed by reference". As in Java, they have an additional level of indirection - the variable points to an "object pointer", and that poi...
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How to get a key in a JavaScript object by its value?

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Favorite Django Tips & Features?

... If you really like to get this fixed in Django leave a comment to code.djangoproject.com/ticket/694 asking core devs to reconsider the wontfix decision. – sorin Jul 21 '10 at 18:42 ...
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IE8 support for CSS Media Query

...a way of degrading the design for IE8 users, you may find IE's conditional commenting helpful. Using this, you can specify an IE 8/7/6 specific style sheet which over writes the previous rules. For example: <link rel="stylesheet" type="text/css" media="all" href="style.css"/> <!--[if lt I...
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Why should I use Deque over Stack?

...tack has no interface, so if you know you need Stack operations you end up committing to a specific concrete class, which isn't usually a good idea. Also as pointed out in the comments, Stack and Deque have reverse iteration orders: Stack<Integer> stack = new Stack<>(); stack.push(1); ...
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Bootstrap 3 Collapse show state with Chevron icon

...eded, taken from bootstrap.css */ } <link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" /> <script src="https://code.jquery.com/jquery-1.11.1.min.js" type="text/javascript" ></script> <script src="//maxcdn.bootstrapcdn.com/bootstrap/...