大约有 40,000 项符合查询结果(耗时:0.0807秒) [XML]

https://stackoverflow.com/ques... 

Entity Framework Refresh context?

...in your context is to dispose your context and create a new one. If you really need to refresh some entity and you are using Code First approach with DbContext class, you can use public static void ReloadEntity<TEntity>( this DbContext context, TEntity entity) wh...
https://stackoverflow.com/ques... 

Defining a variable with or without export

... Specifically export makes the variable available to child processes via the environment. – Beano Jul 21 '09 at 13:35 ...
https://stackoverflow.com/ques... 

Spring get current ApplicationContext

...But I avoid creating new ApplicationContextProvider() everytime I need to call the getBean() from the context. What I did was to have static ApplicationContextProvider.getApplicationContext() method. Then, when it is time to need the current app context, I invoke: ApplicationContextProvider appConte...
https://stackoverflow.com/ques... 

Shortcut to exit scale mode in VirtualBox [closed]

...tings, as the Menu bar is hidden in Scale View. Had the same issue, especially when you checked the box not to show the 'Switch to Scale view' dialog. This you can do while the VM is running. share | ...
https://stackoverflow.com/ques... 

Suggestions for debugging print stylesheets?

...; Rendering Settings > Emulate media > print – allicarn Jul 7 '16 at 22:22 ...
https://stackoverflow.com/ques... 

How to generate a random int in C?

... Note: Don't use rand() for security. If you need a cryptographically secure number, see this answer instead. #include <time.h> #include <stdlib.h> srand(time(NULL)); // Initialization, should only be called once. int r = rand(); // Returns a pseudo-random integer bet...
https://stackoverflow.com/ques... 

What is the best way to dump entire objects to a log in C#?

So for viewing a current object's state at runtime, I really like what the Visual Studio Immediate window gives me. Just doing a simple ...
https://stackoverflow.com/ques... 

qmake: could not find a Qt installation of ''

... sudo apt-get install qt5-default works for me. $ aptitude show qt5-default tells that This package sets Qt 5 to be the default Qt version to be used when using development binaries like qmake. It provides a default configuration for ...
https://stackoverflow.com/ques... 

Why does viewWillAppear not get called when an app comes back from the background?

... In other words, if someone looks at another application or takes a phone call, then switches back to your app which was earlier on backgrounded, your UIViewController which was already visible when you left your app 'doesn't care' so to speak -- as far as it is concerned, it's never disappeared and...
https://stackoverflow.com/ques... 

Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?

... Since PHP/5.4.0, there is an option called JSON_UNESCAPED_UNICODE. Check it out: https://php.net/function.json-encode Therefore you should try: json_encode( $text, JSON_UNESCAPED_UNICODE ); ...