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In C#, how to check if a TCP port is available?

...ctionInformation objects, which you can then interrogate about endpoint IP and port. int port = 456; //<--- This is your value bool isAvailable = true; // Evaluate current system tcp connections. This is the same information provided // by the netstat command line application, just in .Ne...
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How can I fill a div with an image while keeping it proportional?

... If I correctly understand what you want, you may leave the width and height attributes off the image to maintain aspect ratio and use flexbox to do the centering for you. .fill { display: flex; justify-content: center; align-it...
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embedding image in html email

...ttempts have failed, with the image showing up as a red X (in Outlook 2007 and yahoo mail) 14 Answers ...
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scp or sftp copy multiple files with single command

...te server in different directories. For example, I want to run these 4 commands at once. 15 Answers ...
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Using jQuery to test if an input has focus

...ng the $(#element).hover() method. The only problem is, now that jQuery handles both the form focus() and hover() , when an input has focus then the user moves the mouse in and out, the border goes away. ...
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Android: Access child views from a ListView

...yed using a ListView . It seems like I should get one of the TextView's and then use getTop() , but I can't figure out how to get a child view of a ListView . ...
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WPF ListView turn off selection

I have a simple WPF ListView and a simple question: 12 Answers 12 ...
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Compare two List objects for equality, ignoring order [duplicate]

... If you want them to be really equal (i.e. the same items and the same number of each item), I think that the simplest solution is to sort before comparing: Enumerable.SequenceEqual(list1.OrderBy(t => t), list2.OrderBy(t => t)) Edit: Here is a solution that performs a bit ...
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Scale image to fit a bounding box

...Even though this is the accepted answer, the answer below is more accurate and is currently supported in all browsers if you have the option of using a background image. No, there is no CSS only way to do this in both directions. You could add .fillwidth { min-width: 100%; height: auto; }...
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How do I get out of a screen without typing 'exit'?

I screen -r 'd into a django server that's running and I can't simply Ctrl-C and exit out of it. 5 Answers ...