大约有 15,000 项符合查询结果（耗时：0.0124秒） [XML]
Filtering collections in C#
I am looking for a very fast way to filter down a collection in C#. I am currently using generic List collections, but am open to using other structures if they perform better.
...
Foreign Key to multiple tables
I've got 3 relevant tables in my database.
5 Answers
5
...
Encode html entities in javascript
I am working in a CMS which allows users to enter content. The problem is that when they add symbols ® , it may not display well in all browsers. I would like to set up a list of symbols that must be searched for, and then converted to the corresponding html entity. For example
...
How do I clone a generic list in C#?
I have a generic list of objects in C#, and wish to clone the list. The items within the list are cloneable, but there doesn't seem to be an option to do list.Clone() .
...
C++ equivalent of java's instanceof
...
Try using:
if(NewType* v = dynamic_cast<NewType*>(old)) {
// old was safely casted to NewType
v->doSomething();
}
This requires your compiler to have rtti support enabled.
EDIT:
I've had some good comments on this ...
How should I have explained the difference between an Interface and an Abstract class?
...
I will give you an example first:
public interface LoginAuth{
public String encryptPassword(String pass);
public void checkDBforUser();
}
Suppose you have 3 databases in your application. Then each and every implementation ...
What is this date format? 2011-08-12T20:17:46.384Z
I have the following date: 2011-08-12T20:17:46.384Z . What format is this? I'm trying to parse it with Java 1.4 via DateFormat.getDateInstance().parse(dateStr) and I'm getting
...
How can I remove specific rules from iptables?
I am hosting special HTTP and HTTPS services on the ports 8006 and 8007 respectively. I use iptables to "activate" the server; i.e. to route the incoming HTTP and HTTPS ports:
...
Using current time in UTC as default value in PostgreSQL
...ZONE type and would like to have that default to the current time in UTC. Getting the current time in UTC is easy:
6 Answe...
What is Func, how and when is it used
What is Func<> and what is it used for?
7 Answers
7
...