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WebRequest.BeginGetRequestStream Method

Silverlight

When overridden in a descendant class, provides an asynchronous method to request a stream.

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

public abstract IAsyncResult BeginGetRequestStream(
	AsyncCallback callback,
	Object state
)

Parameters

callback: Type: System.AsyncCallback
The AsyncCallback delegate.

state: Type: System.Object
An object containing state information for this asynchronous request.

Return Value

Type: System.IAsyncResult
An IAsyncResult that references the asynchronous request.

Exceptions

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

Remarks

The BeginGetRequestStream method starts an asynchronous request for a stream used to send data to an Internet resource. The callback method that implements the AsyncCallback delegate uses the EndGetRequestStream method to return the request stream.

Note:
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.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Reference

WebRequest Class

System.Net Namespace

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