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Why are unsigned int's not CLS compliant?
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Not all languages have the concept of unsigned ints. For example VB 6 had no concept of unsigned ints which I suspect drove the decision of the designers of VB7/7.1 not to implement as well (it's implemented now in VB8).
To quote...
$.focus() not working
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Actually the example you gave for focusing on this site works just fine, as long as you're not focused in the console. The reason that's not working is simply because it's not stealing focus from the dev console. If you run the f...
How do I test a file upload in rails?
...ing to make it available on SO.
The rails framework has a function fixture_file_upload (Rails 2 Rails 3, Rails 5), which will search your fixtures directory for the file specified and will make it available as a test file for the controller in functional testing. To use it:
1) Put your file to be ...
Is there any reason to use a synchronous XMLHttpRequest?
...st, with one connection, you could tie the browser up. Making use of both allows for more data to be pushed/pulled through the line; but iirc, I think the sync requests still tied up the browser.
– vol7ron
Mar 6 '13 at 22:55
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event Action vs event EventHandler
...u use Action<> your event will not follow the design pattern of virtually any other event in the system, which I would consider a drawback.
One upside with the dominating design pattern (apart from the power of sameness) is that you can extend the EventArgs object with new properties without...
Passing arguments to C# generic new() of templated type
...tion you must constrain it with the "new" flag.
public static string GetAllItems<T>(...) where T : new()
However that will only work when you want to call the constructor which has no parameters. Not the case here. Instead you'll have to provide another parameter which allows for the cr...
Lock-free multi-threading is for real threading experts
... the time is that you do not have dedicated locks - instead you treat e.g. all elements in an array or all nodes in a linked list as a "spin-lock". You read, modify and try to update if there was no update since your last read. If there was, you retry.
This makes your "locking" (oh, sorry, non-locki...
Benefits of header-only libraries
...re the library might be used. When you separate the implementation, you usually do so to hide implementation details, and distribute the library as a combination of headers and libraries (lib, dll's or .so files). These of course have to be compiled for all different operating systems/versions you o...
Drag and drop files into WPF
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This is basically what you want to do.
private void ImagePanel_Drop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop))
{
// Note that you can have more than one file.
string[] files = (string[...
Random record from MongoDB
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Do a count of all records, generate a random number between 0 and the count, and then do:
db.yourCollection.find().limit(-1).skip(yourRandomNumber).next()
share
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