大约有 41,500 项符合查询结果(耗时:0.0382秒) [XML]

https://stackoverflow.com/ques... 

commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated

Sometimes, when using <h:commandLink> , <h:commandButton> or <f:ajax> , the action , actionListener or listener method associated with the tag are simply not being invoked. Or, the bean properties are not updated with submitted UIInput values. ...
https://stackoverflow.com/ques... 

What are the dark corners of Vim your mom never told you about? [closed]

... questions where people talk about common tricks, notably " Vim+ctags tips and tricks ". 70 Answers ...
https://stackoverflow.com/ques... 

What is the difference between a field and a property?

In C#, what makes a field different from a property, and when should a field be used instead of a property? 32 Answers ...
https://stackoverflow.com/ques... 

NoClassDefFoundError - Eclipse and Android

I'm having a problem trying to run an Android app which, up until adding a second external library to its build path, was working fine. Since having added the scoreninja jar, I now get a NoClassDefFoundError when I try to run the app. ...
https://stackoverflow.com/ques... 

What's so bad about Template Haskell?

... Tough luck, you'll only see that when actually using your code generator, and only under the circumstances that trigger the generation of that particular code. It is very difficult to unit test, too. TH is also outright dangerous: Code that runs at compile-time can do arbitrary IO, including la...
https://stackoverflow.com/ques... 

Activity restart on rotation Android

In my Android application, when I rotate the device (slide out the keyboard) then my Activity is restarted ( onCreate is called). Now, this is probably how it's supposed to be, but I do a lot of initial setting up in the onCreate method, so I need either: ...
https://stackoverflow.com/ques... 

What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?

...ing at a HTML 5 boilerplate template (from http://html5boilerplate.com/ ) and noticed the use of "?v=1" in URLs when referring to CSS and Javascript files. ...
https://stackoverflow.com/ques... 

Optimistic vs. Pessimistic locking

I understand the differences between optimistic and pessimistic locking. Now could someone explain to me when I would use either one in general? ...
https://stackoverflow.com/ques... 

Difference Between One-to-Many, Many-to-One and Many-to-Many?

... so this is probably a trivial question but I'm having trouble visualizing and understanding the differences and when to use each. I'm also a little unclear as to how concepts like uni-directional and bi-directional mappings affect the one-to-many/many-to-many relationships. I'm using Hibernate righ...
https://stackoverflow.com/ques... 

Performance optimization strategies of last resort [closed]

...ite already, but it occurs to me that almost all are very problem-specific and fairly narrow. And almost all repeat the advice to avoid premature optimization. ...