当前位置: 首页 > 图文教程 > 网络编程 > ASP > 关于释放session的两篇文章(一)

ASP
深入讲解 ASP+ 验证(一)
深入讲解 ASP+ 验证(二)
深入讲解 ASP+ 验证(三)
深入讲解 ASP+ 验证(四)
通过事例学习.net的WebForms技术(一)
通过事例学习.net的WebForms技术(二)
StripNonNumeric函数源程序
通过事例学习.net的WebForms技术(三)
通过事例学习.net的WebForms技术(四)
将HTML表单数据存储为XML格式 - 1
将HTML表单数据存储为XML格式 - 2
将HTML表单数据存储为XML格式 - 3
asp生日自动提醒小程式
WEB页面简单进度记时器
在主页中编制音频播放器
图片数据的存和取示例
用ASPMail组件实现E_mail自动反馈
读取目录下的所有文件(源码)
制作我们自己的Ebay(拍卖系统)(1)
制作我们自己的Ebay(拍卖系统)(2)

ASP 中的 关于释放session的两篇文章(一)


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 116 ::
收藏到网摘: n/a

  If you are using ASP 3.0 (the version of ASP that comes with Windows 2000 / IIS 5) then you can use the following syntax:

Session.Contents.Remove "name"

where Name is the name of the Session variable you wish to remove. Removing Session variables in this way has its advantages over using the following method:

Session("Name") = Null

Namely, the above method (setting a Session variable to Null) only removes the memory associated with the Session variable itself... the Session object still maintains a reference to it, though. Each Session variables is stored in the Session object with a key/item pair, similar to the Scripting.Dictionary object. Therefore, using the Null method above, you are not removing the key from the Session Contents collection that contains the reference to the variable...

With the Remove method that we looked at first, you are removing both the key and item associated with a Session variable. There is also a RemoveAll method that can be used to scrap all of the Session variables completely:

Session.Contents.RemoveAll

Again, the Remove and RemoveAll methods are new to ASP 3.0. If you have ASP 2.0, you will need to use the Null method