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What is the App_Data folder used for in Visual Studio?
...r specific types of content.
App_Data contains application data files including .mdf database files, XML files, and other data store files. The App_Data folder is
used by ASP.NET to store an application's local database, such as the
database for maintaining membership and role information. ...
html select option separator
...ption approach seems to look the best and be the best supported. I've also included an example of using the optgroup.
optgroup (this way kinda sucks):
<select>
<optgroup>
<option>First</option>
</optgroup>
<optgroup label="_________">...
Export query result to .csv file in SQL Server 2008
...eaders if you go into "Query"->"Query Options...", grid tab, and check "include column headers when copying or saving results"
– Rob Wise
Jun 6 '15 at 6:59
7
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Templated check for the existence of a class member function?
... if a given class does provide a certain method. Here's the working code:
#include <iostream>
struct Hello
{
int helloworld() { return 0; }
};
struct Generic {};
// SFINAE test
template <typename T>
class has_helloworld
{
typedef char one;
struct two { char x[2]; };
...
How to generate a Dockerfile from an image?
... imagelayers.io seems to be broken. It can't find any image including its demo ones
– Robert Lugg
Dec 10 '19 at 22:28
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show ...
How to check if an object is an array?
...ity/security reasons, every frame has its own global environment, and this includes global objects. The Object global from one frame is different from the Object global from another. So too for Array globals. Axel Rauschmayer talks more about this.
– jschoi
Sep...
Fragment MyFragment not attached to Activity
... no problem with this, although I also use a (maybe) more complex way that includes launching tasks from the activity instead of the fragments.
Wish this helps someone! :)
share
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improve this answ...
MySql Table Insert if not exist otherwise update
...ould use INSERT ... ON DUPLICATE KEY UPDATE.
Note that you do not need to include datenum in the update clause since it's the unique key, so it should not change. You do need to include all of the other columns from your table. You can use the VALUES() function to make sure the proper values are us...
Git cherry pick vs rebase
...C0 through C2 with it — effectively, "experiment" is "master" up to, and including, C2 plus commit C3 on top of it. (This is the simplest possible case; of course, "experiment" could contain several dozens of commits on top of its original base.)
Now git rebase is told to rebase "experiment" onto...
Is it possible to use Visual Studio on macOS?
...
@JoshVarty Does Visual Studio for Mac include the IDE only, or also the MSVC compiler?
– Patrick
Sep 15 at 14:43
1
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