WebRequest.Headers 屬性

定義

命名空間:

System.Net

組件:

System.Net.Requests.dll

來源:

WebRequest.cs

在子代類別中覆寫時，取得或設定與要求相關聯的標頭名稱/值組集合。

public:
 virtual property System::Net::WebHeaderCollection ^ Headers { System::Net::WebHeaderCollection ^ get(); void set(System::Net::WebHeaderCollection ^ value); };

public virtual System.Net.WebHeaderCollection Headers { get; set; }

member this.Headers : System.Net.WebHeaderCollection with get, set

Public Overridable Property Headers As WebHeaderCollection

屬性值

WebHeaderCollection

WebHeaderCollection，包含與要求相關聯的標頭名稱/值組。

例外狀況

NotImplementedException

當屬性在子代類別中未覆寫時，會嘗試取得或設定該屬性。

範例

下列範例會顯示與此要求相關聯的標頭名稱/值組。

// Create a new request to the mentioned URL.
WebRequest^ myWebRequest = WebRequest::Create( "http://www.contoso.com" );

// Assign the response object of 'WebRequest' to a 'WebResponse' variable.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

// Release the resources of response object.
myWebResponse->Close();
Console::WriteLine( "\nThe HttpHeaders are \n {0}", myWebRequest->Headers );

         // Create a new request to the mentioned URL.	
WebRequest myWebRequest=WebRequest.Create("http://www.contoso.com");		

// Assign the response object of 'WebRequest' to a 'WebResponse' variable.
WebResponse myWebResponse=myWebRequest.GetResponse();

// Release the resources of response object.
myWebResponse.Close();
Console.WriteLine("\nThe HttpHeaders are \n{0}",myWebRequest.Headers);

    ' Create a new request to the mentioned URL.	
    Dim myWebRequest As WebRequest = WebRequest.Create("http://www.contoso.com")
    
   ' Assign the response object of 'WebRequest' to a 'WebResponse' variable.
   
    Dim myWebResponse As WebResponse = myWebRequest.GetResponse()
   ' Release the resources of response object.
   
 myWebResponse.Close()
Console.WriteLine(ControlChars.Cr + "The HttpHeaders are " + ControlChars.Cr + "{0}", myWebRequest.Headers)

備註

Headers屬性包含 WebHeaderCollection 實例，其中包含要傳送至網際網路資源的標頭資訊。

注意

類別 WebRequest 是類別 abstract 。 執行時間實例的實際行為是由 方法所 WebRequest.Create 傳回的 WebRequest 子系類別所決定。 如需預設值和例外狀況的詳細資訊，請參閱 子系類別的檔，例如 HttpWebRequest 和 FileWebRequest 。

另請參閱

• WebHeaderCollection
• Headers