HttpCookieCollection.GetKey(Int32) 方法

定義

命名空間:

System.Web

組件:

System.Web.dll

傳回在指定數值索引的 Cookie 索引鍵 (名稱)。

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

要從集合中擷取的索引鍵的索引。

傳回

String

index 所指定的 Cookie 名稱。

範例

下列範例會從 Cookie 集合傳回每個 Cookie、檢查它是否名為 「LastVisit」，如果找到 「LastVisit」，則會將其值更新為目前的日期和時間。

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