HttpCookieCollection.GetKey(Int32) 方法

定義

命名空間:
System.Web
組件:
System.Web.dll

回傳 cookie 的金鑰（名稱）在指定的數值索引。

public:
 System::String ^ GetKey(int index);
public string GetKey(int index);
member this.GetKey : int -> string
Public Function GetKey (index As Integer) As String

參數

index
Int32

從集合中擷取的金鑰索引。

傳回

String

由 所指定的 indexcookie 名稱。

範例

以下範例會回傳 Cookie 集合中的每個 Cookie，檢查其名稱是否為「LastVisit」，若找到「LastVisit」，則將其值更新為當前日期與時間。

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

適用於