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WPF - How to force a Command to re-evaluate 'CanExecute' via its CommandBindings

... RoutedCommand I've defined. The associated CommandBinding provides a callback for the evaluation of CanExecute which controls the enabled state of each MenuItem . ...
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How to download a file from a URL in C#?

...ethod also supports local files as 1st parameter – oo_dev Aug 22 '17 at 8:35 The MSDN doc did mention to use HttpClien...
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Pickle or json?

...ccf1b3fa91f4399902bb534/raw/03e8dbab11b5605bc572bc117c8ac34cfa959a70/pickle_vs_json.py python pickle_vs_json.py Results with python 2.7 on a decent 2015 Xeon processor: Dir Entries Method Time Length dump 10 JSON 0.017 1484510 load 10 JSON 0.375 - dump 10 Pickle 0.011 ...
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Read file data without saving it in Flask

...iting my first flask application. I am dealing with file uploads, and basically what I want is to read the data/content of the uploaded file without saving it and then print it on the resulting page. Yes, I am assuming that the user uploads a text file always. ...
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Notification click: activity already open

...current task, then instead of launching a new instance of that activity, all of the other activities on top of it will be closed and this Intent will be delivered to the (now on top) old activity as a new Intent. For example, consider a task consisting of the activities: A, B, C, D. If...
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How do I get class name in PHP?

.... I found this out by trying to access the ::class property(?) of a dynamically generated class and getting the following error: Dynamic class names are not allowed in compile-time ::class fetch. See this answer for more details. I also found this note from the docs helpful. –...
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browser sessionStorage. share between tabs?

...nStorage data from one tab to another. This code would need to exist on ALL tabs. It should execute before your other scripts. // transfers sessionStorage from one tab to another var sessionStorage_transfer = function(event) { if(!event) { event = window.event; } // ie suq if(!event.newValu...
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CGContextDrawImage draws image upside down when passed UIImage.CGImage

...answered Feb 6 '09 at 20:46 Kendall Helmstetter GelnerKendall Helmstetter Gelner 72.5k2626 gold badges123123 silver badges146146 bronze badges ...
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pretty-print JSON using JavaScript

...or sure) and not HTML. Output can be seen inside console. You can edit the _variables inside the function adding some more styling. function JSONstringify(json) { if (typeof json != 'string') { json = JSON.stringify(json, undefined, '\t'); } var arr = [], _stri...
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Passing parameters in rails redirect_to

How do we pass parameters in redirect_to in rails? I know we can pass id using this: 9 Answers ...