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.NET Framework Class Library
WebRequest..::.GetRequestStream Method

When overridden in a descendant class, returns a Stream for writing data to the Internet resource.

Namespace:  System.Net
Assembly:  System (in System.dll)
Visual Basic
Public Overridable Function GetRequestStream As Stream
C#
public virtual Stream GetRequestStream()
Visual C++
public:
virtual Stream^ GetRequestStream()
F#
abstract GetRequestStream : unit -> Stream 
override GetRequestStream : unit -> Stream 

Return Value

Type: System.IO..::.Stream
A Stream for writing data to the Internet resource.
ExceptionCondition
NotImplementedException

Any attempt is made to access the method, when the method is not overridden in a descendant class.

The GetRequestStream method initiates a request to send data to the Internet resource and returns a Stream instance for sending data to the Internet resource.

The GetRequestStream method provides synchronous access to the Stream. For asynchronous access, use the BeginGetRequestStream and EndGetRequestStream methods.

NoteNote

The WebRequest class is an abstract class. The actual behavior of WebRequest instances at run time is determined by the descendant class returned by the WebRequest..::.Create method. For more information about default values and exceptions, see the documentation for the descendant classes, such as HttpWebRequest and FileWebRequest.

The following example uses the GetRequestStream method to obtain a stream and then writes data that stream.

Visual Basic


            ' Set the 'ContentType' property of the WebRequest.
            myWebRequest.ContentType = "application/x-www-form-urlencoded"

            ' Set the 'ContentLength' property of the WebRequest.
            myWebRequest.ContentLength = byteArray.Length
            Dim newStream As Stream = myWebRequest.GetRequestStream()
            newStream.Write(byteArray, 0, byteArray.Length)

            ' Close the Stream object.
            newStream.Close()

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

C#

            // Set the 'ContentType' property of the WebRequest.
            myWebRequest.ContentType="application/x-www-form-urlencoded";

            // Set the 'ContentLength' property of the WebRequest.
            myWebRequest.ContentLength=byteArray.Length;
            Stream newStream=myWebRequest.GetRequestStream();
            newStream.Write(byteArray,0,byteArray.Length);

            // Close the Stream object.
            newStream.Close();

            // Assign the response object of 'WebRequest' to a 'WebResponse' variable.
            WebResponse myWebResponse=myWebRequest.GetResponse();
            
Visual C++
// Set the 'ContentType' property of the WebRequest.
myWebRequest->ContentType = "application/x-www-form-urlencoded";

// Set the 'ContentLength' property of the WebRequest.
myWebRequest->ContentLength = byteArray->Length;
Stream^ newStream = myWebRequest->GetRequestStream();
newStream->Write( byteArray, 0, byteArray->Length );

// Close the Stream object.
newStream->Close();

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

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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