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C# HttpClient 4.5 multipart/form-data upload

...r content = new MultipartFormDataContent("Upload----" + DateTime.Now.ToString(CultureInfo.InvariantCulture))) { content.Add(new StreamContent(new MemoryStream(image)), "bilddatei", "upload.jpg"); using ( var message = ...
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Uses for Optional

... to use Optional . I seem to swing between wanting to use it everywhere something may be null , and nowhere at all. 14 An...
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Last non-empty cell in a column

...e., it will return the last non-blank cell. It needs to be array-entered, meaning that you press Ctrl-Shift-Enter after you type or paste it in. The below is for column A: =INDEX(A:A,MAX((A:A<>"")*(ROW(A:A)))) shar...
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Why are variables “i” and “j” used for counters?

... It comes ultimately from mathematics: the summation notation traditionally uses i for the first index, j for the second, and so on. Example (from http://en.wikipedia.org/wiki/Summation): It's also used that way for collect...
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How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?

...ow of the image or the entire image size!) I don't the performance of this method will be good since having too many UIColor objects is really heavy. In real life when I need a pixel then UIColor is ok, (An NSArray of UIColors is too much for me). And when you need bunch of colors I won't use UIColo...
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Installed Ruby 1.9.3 with RVM but command line doesn't show ruby -v

... You have broken version of RVM. Ubuntu does something to RVM that produces lots of errors, the only safe way of fixing for now is to: sudo apt-get --purge remove ruby-rvm sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh open new terminal and validate e...
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Make a div into a link

I have a <div> block with some fancy visual content that I don't want to change. I want to make it a clickable link. ...
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jQuery form serialize - empty string

... You have to give the input element a name. E.g.: <form id="form1" action="/Home/Test1" method="post" name="down"> <div id="div2"> <input id="input1" type="text" value="2" name="foo"/> </div> </form> wil...
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Running Composer returns: “Could not open input file: composer.phar”

...mv composer.phar /usr/local/bin/composer Then it's likely that you, like me, ran those commands and didn't read the next part of the page telling you to stop referring to composer.phar by its full name and abbreviate it as an executable (that you just renamed with the mv command). So this: $ php ...
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Git status ignore line endings / identical files / windows & linux environment / dropbox / mled

... @ThorstenNiehues I use that setting on some work project. On work I must use windows, home I use mac and linux. Before this I had the same problem as you, after that setting everything was ok. – Saša Šijak Dec 12 '13 at 15:26...