HttpWebRequest.UserAgent Properti

Definisi

Ruang nama:

System.Net

Rakitan:

System.Net.Requests.dll

Sumber:

HttpWebRequest.cs

Mendapatkan atau mengatur nilai header HTTP User-agent.

public:
 property System::String ^ UserAgent { System::String ^ get(); void set(System::String ^ value); };

public string? UserAgent { get; set; }

member this.UserAgent : string with get, set

Public Property UserAgent As String

Nilai Properti

String

Nilai header HTTP User-agent. Nilai defaultnya adalah null.

Contoh

Contoh kode berikut mengatur properti UserAgent.

// Create a new 'HttpWebRequest' object to the mentioned URL.
HttpWebRequest^ myHttpWebRequest = (HttpWebRequest^)( WebRequest::Create( "http://www.contoso.com" ) );
myHttpWebRequest->UserAgent = ".NET Framework Test Client";
// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
HttpWebResponse^ myHttpWebResponse = (HttpWebResponse^)( myHttpWebRequest->GetResponse() );
// Display the contents of the page to the console.
Stream^ streamResponse = myHttpWebResponse->GetResponseStream();
StreamReader^ streamRead = gcnew StreamReader( streamResponse );
array<Char>^ readBuff = gcnew array<Char>(256);
int count = streamRead->Read( readBuff, 0, 256 );
Console::WriteLine( "\nThe contents of HTML Page are :\n" );
while ( count > 0 )
{
   String^ outputData = gcnew String( readBuff,0,count );
   Console::Write( outputData );
   count = streamRead->Read( readBuff, 0, 256 );
}
streamRead->Close();
streamResponse->Close();
myHttpWebResponse->Close();

// Create a new 'HttpWebRequest' object to the mentioned URL.
HttpWebRequest myHttpWebRequest=(HttpWebRequest)WebRequest.Create("http://www.contoso.com");
myHttpWebRequest.UserAgent=".NET Framework Test Client";
// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
HttpWebResponse myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
// Display the contents of the page to the console.
Stream streamResponse=myHttpWebResponse.GetResponseStream();
StreamReader streamRead = new StreamReader( streamResponse );
Char[] readBuff = new Char[256];
int count = streamRead.Read( readBuff, 0, 256 );
Console.WriteLine("\nThe contents of HTML Page are :\n");	
while (count > 0)
{
    String outputData = new String(readBuff, 0, count);
    Console.Write(outputData);
    count = streamRead.Read(readBuff, 0, 256);
}
// Release the response object resources.
streamRead.Close();
streamResponse.Close();
myHttpWebResponse.Close();

 ' Create a new 'HttpWebRequest' object to the mentioned URL.
  Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create("http://www.contoso.com"), HttpWebRequest)
  myHttpWebRequest.UserAgent= ".NET Framework Test Client"
  ' The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
  Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
  ' Display the contents of the page to the console.
  Dim streamResponse As Stream = myHttpWebResponse.GetResponseStream()
  Dim streamRead As New StreamReader(streamResponse)
  Dim readBuff(256) As [Char]
  Dim count As Integer = streamRead.Read(readBuff, 0, 256)
  Console.WriteLine(ControlChars.Cr + "The contents of HTML Page are :" + ControlChars.Cr)
  While count > 0
      Dim outputData As New [String](readBuff, 0, count)
      Console.Write(outputData)
      count = streamRead.Read(readBuff, 0, 256)
  End While
  streamRead.Close()
   streamResponse.Close()    
' Release the response object resources.
   myHttpWebResponse.Close()

Keterangan

Hati

WebRequest, HttpWebRequest, ServicePoint, dan WebClient usang, dan Anda tidak boleh menggunakannya untuk pengembangan baru. Gunakan HttpClient sebagai gantinya.

Nilai untuk properti ini disimpan dalam WebHeaderCollection. Jika WebHeaderCollection diatur, nilai properti akan hilang.