HttpRequestMessageProperty.Headers Properti

Definisi

Ruang nama:

System.ServiceModel.Channels

Rakitan:

System.ServiceModel.dll, System.ServiceModel.Http.dll

Paket:

System.ServiceModel.Http v10.0.652802, System.ServiceModel.Primitives v10.0.652802

Sumber:

HttpRequestMessageProperty.cs

Mendapatkan header HTTP dari permintaan HTTP.

public:
 property System::Net::WebHeaderCollection ^ Headers { System::Net::WebHeaderCollection ^ get(); };

public System.Net.WebHeaderCollection Headers { get; }

member this.Headers : System.Net.WebHeaderCollection

Public ReadOnly Property Headers As WebHeaderCollection

Nilai Properti

WebHeaderCollection

Mengembalikan yang WebHeaderCollection berisi header HTTP dalam permintaan HTTP.

Contoh

Kode berikut menunjukkan cara menggunakan properti ini untuk menambahkan header kustom ke pesan.

static Message BuildMessage()
{
    Message messageToSend = null;
    HttpRequestMessageProperty reqProps = new HttpRequestMessageProperty();
    reqProps.SuppressEntityBody = false;
    reqProps.Headers.Add("CustomHeader", "Test Value");
    reqProps.Headers.Add(HttpRequestHeader.UserAgent, "my user agent");

    try
    {
        messageToSend = Message.CreateMessage(MessageVersion.Soap11, "http://tempuri.org/IUntypedService/ProcessMessage", "Hello WCF");
    }
    catch (Exception e)
    {
        Console.WriteLine("got exception when sending message: " + e.ToString());
    }

    messageToSend.Properties[HttpRequestMessageProperty.Name] = reqProps;
    return messageToSend;
}

Private Shared Function BuildMessage() As Message
    Dim messageToSend As Message = Nothing
    Dim reqProps As New HttpRequestMessageProperty()
    reqProps.SuppressEntityBody = False
    reqProps.Headers.Add("CustomHeader", "Test Value")
    reqProps.Headers.Add(HttpRequestHeader.UserAgent, "my user agent")

    Try
        messageToSend = Message.CreateMessage(MessageVersion.Soap11, "http://tempuri.org/IUntypedService/ProcessMessage", "Hello WCF")
    Catch e As Exception
        Console.WriteLine("got exception when sending message: " & e.ToString())
    End Try

    messageToSend.Properties(HttpRequestMessageProperty.Name) = reqProps
    Return messageToSend
End Function

Keterangan

Ada situasi di mana properti ini tidak tersedia dan upaya untuk mengaksesnya dapat menyebabkan pengecualian. Ini dapat terjadi ketika WCF dihosting di IIS, setelah permintaan HTTP selesai, terutama dalam skenario satu arah di mana balasan dikirim kembali sebelum pesan tersedia.