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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)

'Declaration
Public Overridable Function GetRequestStream As Stream
'Usage
Dim instance As WebRequest
Dim returnValue As Stream

returnValue = instance.GetRequestStream
public Stream GetRequestStream ()
public function GetRequestStream () : Stream

Return Value

A Stream for writing data to the Internet resource.
Exception typeCondition

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 System.Net.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.



' 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()


// Set the 'ContentType' property of the WebRequest.
myWebRequest.set_ContentType("application/x-www-form-urlencoded");
// Set the 'ContentLength' property of the WebRequest.
myWebRequest.set_ContentLength(byteArray.get_Length());
Stream newStream = myWebRequest.GetRequestStream();
newStream.Write(byteArray, 0, byteArray.get_Length());
// Close the Stream object.
newStream.Close();
// Assign the response object of 'WebRequest' to a 'WebResponse' 
// variable.
WebResponse myWebResponse = myWebRequest.GetResponse();

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

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0
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