HttpCookieCollection.GetKey(Int32) 方法

定义

命名空间:

System.Web

程序集:

System.Web.dll

返回指定数字索引处的 Cookie 键（名称）。

public:
 System::String ^ GetKey(int index);

public string GetKey (int index);

member this.GetKey : int -> string

Public Function GetKey (index As Integer) As String

参数

index

Int32

要从集合中检索的键索引。

返回

String

按 index 指定的 Cookie 的名称。

示例

下面的示例从 Cookie 集合返回每个 Cookie，检查它是否名为“LastVisit”，如果找到“LastVisit”，则会将其值更新为当前日期和时间。

int loop1;

 HttpCookieCollection MyCookieCollection = Response.Cookies;

 for(loop1 = 0; loop1 < MyCookieCollection.Count; loop1++)
 {
    if(MyCookieCollection.GetKey(loop1) == "LastVisit")
    {
       MyCookieCollection[loop1].Value = DateTime.Now.ToString();
       MyCookieCollection.Set(MyCookieCollection[loop1]);
    }
 }

Dim loop1 As Integer
 Dim MyCookie As HttpCookie
 Dim MyCookieCollection As HttpCookieCollection = Request.Cookies
 
 For loop1 = 0 To MyCookieCollection.Count - 1
    If MyCookieCollection.GetKey(loop1) = "LastVisit" Then
       MyCookieCollection(loop1).Value = DateTime.Now().ToString()
       MyCookieCollection.Set(MyCookieCollection(loop1))
       Exit For
    End If
 Next loop1