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Assign null to a SqlParameter
...r" that uses cast with (object) ?? DBNull.Value works correctly. (The ADO.NET provider I used was SQLite but I'm not sure if that makes a difference.) I suggest that others carefully test Brian's tip to make sure null behavior is working as expected.
– JasDev
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Best explanation for languages without null
...ambiguity and confusion: every time I access a reference type variable in .NET, I have to consider that it might be null.
Often, it will never actually be null, because the programmer structures the code so that it can never happen. But the compiler can't verify that, and every single time you see ...
Nginx 403 forbidden for all files
...access that file. Check the permissions on /, /home, /home/demo, etc. for www-data x access. My guess is that /home is probably 770 and www-data can't chdir through it to get to any subdir. If it is, try chmod o+x /home (or whatever dir is denying the request).
EDIT: To easily display all the pe...
Go to back directory browsing after opening file in vim
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The proper command for returning to the netrw listing is :Rex[plore]. You can run it even after you have jumped to and from dozens of files.
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Razor HtmlHelper Extensions (or other namespaces for views) Not Found
... project and select "Manage Nuget Packages..." then install "Microsoft ASP.NET Razor". This will make sure that the properly package is installed and it will add the necessary entries into your web.config file.
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WAMP shows error 'MSVCR100.dll' is missing when install
...utable for Visual Studio 2012 Update 4
You can download it at:
https://www.microsoft.com/en-us/download/details.aspx?id=30679
There you can select the x86 or x64 version depending on your system
This article on the WampServer forums shows all the Microsoft Visual C++ runtime libraries you ne...
When should I use a List vs a LinkedList
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There is one benefit to LinkedList over List (this is .net specific): since the List is backed by an internal array, it is allocated in one contiguous block. If that allocated block exceeds 85000 bytes in size, it will be allocated on the Large Object Heap, a non-compactable gene...
Reference: What is variable scope, which variables are accessible from where and what are “undefined
... request
$_POST - Values passed in an HTTP POST request with application/x-www-form-urlencoded or multipart/form-data MIME types
$_FILES - Files passed in an HTTP POST request with a multipart/form-data MIME type
$_COOKIE - Cookies passed with the current request
$_SESSION - Session variables stored...
What is the best way to conditionally apply a class?
... {"name": "Item 2", "isSelected": ""}
]
}
See: http://jsfiddle.net/tTfWM/
See: http://docs.angularjs.org/api/ng.directive:ngClass
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differences in application/json and application/x-www-form-urlencoded
...ave on the server side. I see sites like stackoverflow & Twitter use x-www-form-urlencoded for AJAX requests like vote etc. The response sent back is JSON. I would think that it's better to have a symmetrical request/response pair i.e. both JSON.
– user
Jul...