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Deciding between HttpClient and WebClient
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| configured cookies | configuration and other authentication |
+--------------------------------------------+--------------------------------------------+
| You need to new up a WebClient to | Single HttpClient can make concurrent |
| make concurrent requ...
How to select the row with the maximum value in each group
...lues are available as an array. So you can first sort by pt descending and then use pt[1] or first(pt) to get the highest value: group %>% group_by(Subject) %>% arrange(desc(pt), .by_group = TRUE) %>% summarise(max_pt=first(pt), min_pt=last(pt), Event=first(Event))
– ...
What is the difference between SessionState and ViewState?
... you want to store information that you want to access from the same page, then you can use Viewstate
Storage
The Viewstate is stored within the page itself (in encrypted text), while the Sessionstate is stored in the server.
The SessionState will clear in the following conditions
Cleared by pro...
Best way to get application folder path
...es whose location is relative to the application install directory.
In an ASP.NET application, this will be the application root directory, not the bin subfolder - which is probably what you usually want. In a client application, it will be the directory containing the main executable.
In a VSTO 2...
How to set selected value of jquery select2?
...e");
$('#select_id').append($option).trigger('change');
Try this append then select. Doesn't duplicate the option upon AJAX call.
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How does the C code that prints from 1 to 1000 without loops or conditional statements work?
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Which is:
(&main)(j+1);
Which calls main with j+1.
If j == 1000, then the same lines comes out as:
(&main + (&exit - &main)*1)(j+1);
Which boils down to
(&exit)(j+1);
Which is exit(j+1) and leaves the program.
(&exit)(j+1) and exit(j+1) are essentially the same...
size_t vs. uintptr_t
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Touché! But then again, size_t and uintptr_t still have implied uses in their names.
– dreamlax
Sep 23 '09 at 6:17
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How can I upload files asynchronously?
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Can I then use $_FILES in the upload.php?
– Alessandro Cosentino
Nov 2 '12 at 13:41
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Stop Visual Studio from launching a new browser window when starting debug?
... right click your project in the Solution Explorer and choose Properties), then navigate to the Web tab and under Start Action choose Don't open a page. Wait for a request from an external application.
You will still be able to use any browser (or Fiddler, whatever) to access the running applicatio...
How is std::function implemented?
...e. If the callable entity is large enough to require a dynamic allocation, then the copy of the std::function will trigger an allocation.
– David Rodríguez - dribeas
Aug 26 '13 at 22:11
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