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Using Server.MapPath() inside a static field in ASP.NET MVC
... a relative virtual path. For example, Server.MapPath() allows a path of "files/file1.doc". It uses the current context to determine the path of the current page, for example, and then creates the relative path from there. If we are in ~/Subfolder/Page1.aspx, the url would map from ~/Subfolder/fi...
Adding Permissions in AndroidManifest.xml in Android Studio?
...
Where is the manifest file in the project tree in Android Studio?
– djondal
Apr 15 '15 at 0:03
5
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Do sealed classes really offer performance Benefits?
...can use call instead of callvirt as it doesn't have to check for virtuals, etc. As proven above, this is not true.
My next thought was that even though the MSIL is identical, perhaps the JIT compiler treats sealed classes differently?
I ran a release build under the visual studio debugger and view...
Use of “global” keyword in Python
...above will give you:
locally defined
Traceback (most recent call last):
File "file.py", line 9, in <module>
print(me)
NameError: name 'me' is not defined
While if you use the global statement, the variable will become available "outside" the scope of the function, effectively becoming...
What does the 'b' character do in front of a string literal?
...EF\xBB\xBF' + 'Text with a UTF-8 BOM'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: can't concat bytes to str
The b'...' notation is somewhat confusing in that it allows the bytes 0x01-0x7F to be specified with ASCII characters instead of hex number...
How to find the .NET framework version of a Visual Studio project?
...
You can also search the Visual Studio project files for the XML tag RequiredTargetFramework. This tag seems to exist on .NET 3.5 and higher.
For example: <RequiredTargetFramework>3.5</RequiredTargetFramework>
...
What are type lambdas in Scala and what are their benefits?
..., another concrete type. Give List a String and it gives you List[String]. Etc.
So, List, Option can be considered to be type level functions of arity 1. Formally we say, they have a kind * -> *. The asterisk denotes a type.
Now Tuple2[_, _] is a type constructor with kind (*, *) -> * i.e. y...
Keeping ASP.NET Session Open / Alive
...t need an additional HTTP handler and some modifications of the web.config file. All you need – just to add some simple action in a Home/Common controller:
[HttpPost]
public JsonResult KeepSessionAlive() {
return new JsonResult {Data = "Success"};
}
, write a piece of JavaScript code like t...
Error on pod install
I have a working project the uses a pod file for some weeks now. When I learned that some of my pods have update I tried to 'pod install' on got this weird error
...
How to properly ignore exceptions
...")
Traceback (most recent call last):
[...]
OSError: [Errno 2] No such file or directory: '/fake/dir'
If you want to silently ignore that error, you would do:
try:
shutil.rmtree(path)
except OSError:
pass
Why? Say you (somehow) accidently pass the function an integer instead of a st...