HttpWebRequest.SendChunked プロパティ

インターネット リソースへセグメント単位でデータを送信するかどうかを示す値を取得または設定します。

Public Property SendChunked As Boolean
[C#]
public bool SendChunked {get; set;}
[C++]
public: __property bool get_SendChunked();public: __property void set_SendChunked(bool);
[JScript]
public function get SendChunked() : Boolean;public function set SendChunked(Boolean);

プロパティ値

インターネット リソースへセグメント単位でデータを送信する場合は true 。それ以外の場合は false 。既定値は false です。

例外

例外の種類	条件
InvalidOperationException	要求が GetRequestStream 、 BeginGetRequestStream 、 GetResponse 、または BeginGetResponse の各メソッドの呼び出しによって開始されました。

解説

SendChunked が true の場合、要求はセグメント単位でインターネット リソースにデータを送信します。インターネット リソースは、チャンク データの受信をサポートしている必要があります

GetRequestStream メソッド、 BeginGetRequestStream メソッド、 GetResponse メソッド、または BeginGetResponse メソッドの呼び出しによって要求を開始した後に SendChunked プロパティを変更すると、 InvalidOperationException がスローされます。

使用例

[Visual Basic, C#, C++] SendChunked プロパティを true に設定して、インターネット リソースにデータをセグメント単位で送信する例を次に示します。

 
' A new 'HttpWebRequest' object is created.
Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create(myUri), HttpWebRequest)
myHttpWebRequest.SendChunked = True
' 'TransferEncoding' property is set to 'gzip'.
myHttpWebRequest.TransferEncoding = "gzip"
Console.WriteLine(ControlChars.Cr + "Please Enter the data to be posted to the (http://" + ChrW(60) + "machine name" + ChrW(62) + "/CodeSnippetTest.asp) uri:")
Dim inputData As String = Console.ReadLine()
Dim postData As String = "testdata" + ChrW(61) + inputData
' 'Method' property of 'HttpWebRequest' class is set to POST.
myHttpWebRequest.Method = "POST"
Dim encodedData As New ASCIIEncoding()
Dim byteArray As Byte() = encodedData.GetBytes(postData)
' 'ContentType' property of the 'HttpWebRequest' class is set to "application/x-www-form-urlencoded".
myHttpWebRequest.ContentType = "application/x-www-form-urlencoded"
' 'ContentLength' property is set to Length of the data to be posted.
myHttpWebRequest.ContentLength = byteArray.Length
Dim newStream As Stream = myHttpWebRequest.GetRequestStream()
newStream.Write(byteArray, 0, byteArray.Length)
newStream.Close()
Console.WriteLine(ControlChars.Cr + "Data has been posted to the Uri" + ControlChars.Cr + ControlChars.Cr + "Please wait for the response..........")
' The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
' Displaying 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 the HTML page are :  ")
While count > 0
    Dim outputData As New [String](readBuff, 0, count)
    Console.WriteLine(outputData)
    count = streamRead.Read(readBuff, 0, 256)
End While
' Release the response object resources.  
streamRead.Close()
streamResponse.Close()
myHttpWebResponse.Close()

[C#] 
// A new 'HttpWebRequest' object is created.
HttpWebRequest myHttpWebRequest=(HttpWebRequest)WebRequest.Create(myUri);
myHttpWebRequest.SendChunked=true;
// 'TransferEncoding' property is set to 'gzip'.
myHttpWebRequest.TransferEncoding="gzip";
Console.WriteLine("\nPlease Enter the data to be posted to the (http://<machine name>/CodeSnippetTest.asp) uri:");
string inputData =Console.ReadLine();
string postData="testdata="+inputData;
// 'Method' property of 'HttpWebRequest' class is set to POST.
myHttpWebRequest.Method="POST";
ASCIIEncoding encodedData=new ASCIIEncoding();
byte[]  byteArray=encodedData.GetBytes(postData);
// 'ContentType' property of the 'HttpWebRequest' class is set to "application/x-www-form-urlencoded".
myHttpWebRequest.ContentType="application/x-www-form-urlencoded";
// 'ContentLength' property is set to Length of the data to be posted.
myHttpWebRequest.ContentLength=byteArray.Length;
Stream newStream=myHttpWebRequest.GetRequestStream();
newStream.Write(byteArray,0,byteArray.Length);
newStream.Close();
Console.WriteLine("\nData has been posted to the Uri\n\nPlease wait for the response..........");
// The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
HttpWebResponse myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
// Displaying 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 the HTML page are :  ");
while (count > 0) 
{
   String outputData = new String(readBuff, 0, count);
   Console.WriteLine(outputData);
   count = streamRead.Read(readBuff, 0, 256);
}
// Release the response object resources.
streamRead.Close();
streamResponse.Close();
myHttpWebResponse.Close(); 

[C++] 
// A new 'HttpWebRequest' object is created.
HttpWebRequest* myHttpWebRequest =
   dynamic_cast<HttpWebRequest*>(WebRequest::Create(myUri));
myHttpWebRequest->SendChunked = true;
// 'TransferEncoding' property is set to 'gzip'.
myHttpWebRequest->TransferEncoding = S"gzip";
Console::WriteLine(S"\nPlease Enter the data to be posted to the (http://<machine name>/CodeSnippetTest::asp) uri:");
String* inputData = Console::ReadLine();
String* postData=String::Concat(S"testdata= ", inputData);
// 'Method' property of 'HttpWebRequest' class is set to POST.
myHttpWebRequest->Method = S"POST";
ASCIIEncoding* encodedData = new ASCIIEncoding();
Byte byteArray[] = encodedData->GetBytes(postData);
// 'ContentType' property of the 'HttpWebRequest' class is set to S"application/x-www-form-urlencoded".
myHttpWebRequest->ContentType = S"application/x-www-form-urlencoded";
// 'ContentLength' property is set to Length of the data to be posted.
myHttpWebRequest->ContentLength = byteArray->Length;
Stream* newStream = myHttpWebRequest->GetRequestStream();
newStream->Write(byteArray, 0, byteArray->Length);
newStream->Close();
Console::WriteLine(S"\nData has been posted to the Uri\n\nPlease wait for the response..........");
// The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
HttpWebResponse* myHttpWebResponse =
   dynamic_cast<HttpWebResponse*>(myHttpWebRequest->GetResponse());
// Displaying 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(S"\nThe contents of the HTML page are :  ");
while (count > 0) {
   String* outputData = new String(readBuff, 0, count);
   Console::WriteLine(outputData);
   count = streamRead->Read(readBuff, 0, 256);
}
// Release the response object resources.
streamRead->Close();
streamResponse->Close();
myHttpWebResponse->Close();

[JScript] JScript のサンプルはありません。Visual Basic、C#、および C++ のサンプルを表示するには、このページの左上隅にある言語のフィルタ ボタン をクリックします。

必要条件

プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET, Common Language Infrastructure (CLI) Standard

参照

HttpWebRequest クラス | HttpWebRequest メンバ | System.Net 名前空間