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What is a good pattern for using a Global Mutex in C#?

... A tip: watch out using Mutex with ASP.NET: "The Mutex class enforces thread identity, so a mutex can be released only by the thread that acquired it. By contrast, the Semaphore class does not enforce thread identity.". An ASP.NET request can be serviced by multip...
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Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers

...p://blogs.msdn.com/b/carlosfigueira/archive/2012/07/02/cors-support-in-asp-net-web-api-rc-version.aspx". It is working successfully, and i post data from client side to server successfully. ...
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What is the __DynamicallyInvokable attribute for?

... It is undocumented, but it looks like one of the optimizations in .NET 4.5. It appears to be used to prime the reflection type info cache, making subsequent reflection code on common framework types run faster. There's a comment about it in the Reference Source for System.Reflection.Assemb...
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Regex to test if string begins with http:// or https://

... Making this case insensitive wasn't working in asp.net so I just specified each of the letters. Here's what I had to do to get it working in an asp.net RegularExpressionValidator: [Hh][Tt][Tt][Pp][Ss]?://(.*) Notes: (?i) and using /whatever/i didn't work probably becaus...
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How do you prevent IDisposable from spreading to all your classes?

... not can be instructional. So can examining the available sources for the .net libraries or using a decompiler. share | improve this answer | follow | ...
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jQuery attr vs prop?

... What's the difference question , I have done some tests(http://jsfiddle.net/ZC3Lf/) modifying the prop and attr of <form action="/test/"></form>​ with the output being: ...
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Why must a nonlinear activation function be used in a backpropagation neural network? [closed]

I've been reading some things on neural networks and I understand the general principle of a single layer neural network. I understand the need for aditional layers, but why are nonlinear activation functions used? ...
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Firing a double click event from a WPF ListView item using MVVM

... I am able to get this to work with .NET 4.5. Seems straight forward and no third party or code behind needed. <ListView ItemsSource="{Binding Data}"> <ListView.ItemsPanel> <ItemsPanelTemplate> <StackPan...
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How do I determine whether my calculation of pi is accurate?

...aches and see if they converge to the same answer. Or grab some from the 'net. The Chudnovsky algorithm is usually used as a very fast method of calculating pi. http://www.craig-wood.com/nick/articles/pi-chudnovsky/ share ...
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Fixed position but relative to container

...%; top: 0%; margin-left: -300px; /*half the width*/ } http://jsfiddle.net/HFjU6/1/ Edit (03/2015): This is outdated information. It is now possible to center content of an dynamic size (horizontally and vertically) with the help of the magic of CSS3 transform. The same principle applies, but ...