SessionStateItemCollection.Keys 属性

定义

命名空间:

System.Web.SessionState

程序集:

System.Web.dll

为存储在集合中的所有值获取变量名的集合。

public:
 virtual property System::Collections::Specialized::NameObjectCollectionBase::KeysCollection ^ Keys { System::Collections::Specialized::NameObjectCollectionBase::KeysCollection ^ get(); };

public override System.Collections.Specialized.NameObjectCollectionBase.KeysCollection Keys { get; }

member this.Keys : System.Collections.Specialized.NameObjectCollectionBase.KeysCollection

Public Overrides ReadOnly Property Keys As NameObjectCollectionBase.KeysCollection

属性值

NameObjectCollectionBase.KeysCollection

包含所有集合键的 NameObjectCollectionBase.KeysCollection 集合。

实现

Keys

示例

下面的代码示例使用属性返回Keys的变量名称获取集合中的SessionStateItemCollection变量名称。

SessionStateItemCollection items = new SessionStateItemCollection();

items["LastName"] = "Wilson";
items["FirstName"] = "Dan";

foreach (string s in items.Keys)
  Response.Write("items[\"" + s + "\"] = " + items[s].ToString() + "<br />");

Dim items As SessionStateItemCollection = New SessionStateItemCollection()

items("LastName") = "Wilson"
items("FirstName") = "Dan"

For Each s As String In items.Keys
  Response.Write("items(""" & s & """) = " & items(s).ToString() & "<br />")
Next

注解

每个键都是一个字符串，表示集合中存储的值的变量名称。

另请参阅

• ASP.NET 会话状态概述