Export (0) Print
Expand All

HttpWebRequest.AllowWriteStreamBuffering Property

Gets or sets a value that indicates whether to buffer the data sent to the Internet resource.

Namespace:  System.Net
Assembly:  System (in System.dll)

public bool AllowWriteStreamBuffering { get; set; }

Property Value

Type: System.Boolean
true to enable buffering of the data sent to the Internet resource; false to disable buffering. The default is true.

When AllowWriteStreamBuffering is true, the data is buffered in memory so it is ready to be resent in the event of redirections or authentication requests.

Notes to Implementers:

Setting AllowWriteStreamBuffering to true might cause performance problems when uploading large datasets because the data buffer could use all available memory.

Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows CE Platform Note: For performance considerations, the default value for this property is false; however, it is important to note that if verbs require entity data (such as POST), redirection and authentication might not occur. To implement the full .NET Framework behavior for HTTP requests, set AllowWriteStreamBuffering to true.

The following code example uses the AllowWriteStreamBuffering property to disable data buffering.

			// Create a new 'HttpWebRequest' object to the mentioned Uri.				
			HttpWebRequest myHttpWebRequest=(HttpWebRequest)WebRequest.Create("http://www.contoso.com/codesnippets/next.asp");
			// Set AllowWriteStreamBuffering to 'false'. 
			myHttpWebRequest.AllowWriteStreamBuffering=false;
			Console.WriteLine("\nPlease Enter the data to be posted to the (http://www.contoso.com/codesnippets/next.asp) uri:");
			string inputData =Console.ReadLine();
			string postData="firstone="+inputData;
			// Set 'Method' property of 'HttpWebRequest' class to POST.
			myHttpWebRequest.Method="POST";
			ASCIIEncoding encodedData=new ASCIIEncoding();
			byte[]  byteArray=encodedData.GetBytes(postData);
			// Set 'ContentType' property of the 'HttpWebRequest' class to "application/x-www-form-urlencoded".
			myHttpWebRequest.ContentType="application/x-www-form-urlencoded";
			// If the AllowWriteStreamBuffering property of HttpWebRequest is set to false,the contentlength has to be set to length of data to be posted else Exception(411) is raised.
			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..........");
			// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
			HttpWebResponse myHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse();
// Create a new 'HttpWebRequest' object to the mentioned Uri.
HttpWebRequest* myHttpWebRequest =
   dynamic_cast<HttpWebRequest*>(WebRequest::Create(S"http://www.contoso.com/codesnippets/next.asp"));
// Set AllowWriteStreamBuffering to 'false'.
myHttpWebRequest->AllowWriteStreamBuffering=false;
Console::WriteLine(S"\nPlease Enter the data to be posted to the (http://www.contoso.com/codesnippets/next.asp) uri:");
String* inputData =Console::ReadLine();
String* postData = String::Concat(S"firstone= ", inputData);
// Set 'Method' property of 'HttpWebRequest' class to POST.
myHttpWebRequest->Method=S"POST";
ASCIIEncoding* encodedData = new ASCIIEncoding();
Byte byteArray[]=encodedData->GetBytes(postData);
// Set 'ContentType' property of the 'HttpWebRequest' class to S"application/x-www-form-urlencoded".
myHttpWebRequest->ContentType = S"application/x-www-form-urlencoded";
// If the AllowWriteStreamBuffering property of HttpWebRequest is set to false, the contentlength has to be set to length of data to be posted else Exception(411) is raised.
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..........");
// Assign the response object of 'HttpWebRequest' to a 'HttpWebResponse' variable.
HttpWebResponse* myHttpWebResponse =
   dynamic_cast<HttpWebResponse*>(myHttpWebRequest->GetResponse());

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

Community Additions

ADD
Show:
© 2014 Microsoft