[英]Best practice to store values in session
I am storing list of customers in session. 我在会话中存储客户列表。 When I reset, I wanted to know what happens to the previous cached listed, will it be destroyed automatically.
当我重置时,我想知道上面列出的缓存会发生什么,它会自动销毁。 Since I no longer need it, is it possible to destroy it completely and store a new value.
由于我不再需要它,是否可以完全销毁它并存储新值。
public IList<Customer> CachedCustomers
{
set
{
HttpContext.Current.Session["Customers"] = null;//<-- Is this line required
HttpContext.Current.Session["Customers"] = value;
}
}
No, setting to null
is not needed. 不,不需要设置为
null
。 This is no different than any variable or field in .NET. 这与.NET中的任何变量或字段没有什么不同。 Setting to value
x
, then setting to value y
is the same as setting to value y
. 设置为值
x
,然后设置为值y
与设置为值y
相同。
Of course, this would not apply to a property, which could run code on every set, and could do something different between setting to null
and setting to something else. 当然,这不适用于可以在每个集合上运行代码的属性,并且可以在设置为
null
和设置为其他内容之间执行不同的操作。
For the Add session: 对于添加会话:
HttpContext.Current.Session["Customers"] = value;
For Remove the Session: 对于删除会话:
HttpContext.Current.Session.Contents.Remove("Customers")
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