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Difference between Control Template and DataTemplate in WPF

... Typically a control is rendered for its own sake, and doesn't reflect underlying data. For example, a Button wouldn't be bound to a business object - it's there purely so it can be clicked on. A ContentControl or ListBox, however, generally appear so that they can presen...
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Bash/sh - difference between && and ;

...ifference? For example, cd ~; cd - and cd ~ && cd - seems to make the same thing. What version is more portable, e.g. will be supported by a bash-subset like Android's shell or so? ...
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What’s the best way to reload / refresh an iframe?

I would like to reload an <iframe> using JavaScript. The best way I found until now was set the iframe’s src attribute to itself, but this isn’t very clean. Any ideas? ...
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Is there a way to run Bash scripts on Windows? [closed]

I have bought and I use Windows 7 Ultimate, and I like to use it to develop applications. One of the down sides (as with every OS) is that I can not run Bash scripts. Is there a way to run Bash scripts on Windows by installing some software? It is ok if it does not work 100%, but as long as the most...
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Postgresql: password authentication failed for user “postgres”

...in. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times without this problem. What should I do? And what happens? ...
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Listening for variable changes in JavaScript

... Yes, this is now completely possible! I know this is an old thread but now this effect is possible using accessors (getters and setters): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects#Defining_getters_and_setters You can define...
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What is %2C in a URL?

... Check out http://www.asciitable.com/ Look at the Hx, (Hex) column; 2C maps to , Any unusual encoding can be checked this way +----+-----+----+-----+----+-----+----+-----+ | Hx | Chr | Hx | Chr | Hx | Chr | Hx | Chr | +----+---...
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How to get a complete list of object's methods and attributes?

...n function. As the user can reimplement __getattr__, suddenly allowing any kind of attribute, there is no possible generic way to generate that list. The dir function returns the keys in the __dict__ attribute, i.e. all the attributes accessible if the __getattr__ method is not reimplemented. For t...
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How do I set the value property in AngularJS' ng-options?

...for value in array select as label group by group for value in array track by trackexpr For object data sources: label for (key , value) in object select as label for (key , value) in object label group by group for (key, value) in object select as label group by group for (key, value) i...
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Grep not as a regular expression

I need to search for a PHP variable $someVar . However, Grep thinks that I am trying to run a regex and is complaining: 6 ...