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download file using an ajax request

...n as your site. You could always make the AJAX request/window.location a fallback by using some JavaScript to test if download is supported and if not, switching it to call window.location. Original answer You can't have an AJAX request open the download prompt since you physically have to naviga...
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Yes/No message box using QMessageBox

...ult button with an extra argument (Qt "chooses a suitable default automatically" if you don't or specify QMessageBox::NoButton). share | improve this answer | follow ...
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Dialog to pick image from gallery or from camera

Is there a standard way to call dialog box with choose either to pick an image from the camera or to get from gallery (like in build-in phone book or Skype)? ...
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What is pseudopolynomial time? How does it differ from polynomial time?

...ng TSP takes time O(n · n!), which isn't polynomial time. These runtimes all refer to some variable n that tracks the size of the input. For example, in selection sort, n refers to the number of elements in the array, while in TSP n refers to the number of nodes in the graph. In order to standardi...
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How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw

...gure and troubleshoot <p:fileUpload> depends on PrimeFaces version. All PrimeFaces versions The below requirements apply to all PrimeFaces versions: The enctype attribute of the <h:form> needs to be set to multipart/form-data. When this is absent, the ajax upload may just work, but t...
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How to do a scatter plot with empty circles in Python?

... colored disks already plotted by scatter() , so as to highlight them, ideally without having to redraw the colored circles. ...
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How do you create a static class in C++?

...int buffer, int bitIndex); // ...lots of great stuff private: // Disallow creating an instance of this object BitParser() {} }; BitParser.cpp bool BitParser::getBitAt(int buffer, int bitIndex) { bool isBitSet = false; // .. determine if bit is set return isBitSet; } You can use t...
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How to display HTML tags as plain text [duplicate]

I have an input form on my website where HTML is allowed and I'm trying to add instructions about the use of HTML tags. I'd like the text to ...
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Why can I pass 1 as a short, but not the int variable i?

...oes the first and second Write work but not the last? Is there a way I can allow all 3 of them and detect if it was 1, (int)1 or i passed in? And really why is one allowed but the last? The second being allowed but not the last really blows my mind. ...
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How do I assign an alias to a function name in C++?

... Note: there is no way to make an alias to overloaded function such that all its overloaded versions work, so you should always specify which exact function overload you want. With C++14 you can go even further with constexpr template variables. That allows you to alias templated functions: templ...