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WebRequest::GetRequestStreamAsync Method

.NET Framework 4.5

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

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

[HostProtectionAttribute(SecurityAction::LinkDemand, ExternalThreading = true)]
public:
virtual Task<Stream^>^ GetRequestStreamAsync()

Return Value

Type: System.Threading.Tasks::Task<Stream>
Returns Task<TResult>.
The task object representing the asynchronous operation.

This operation will not block. The returned Task<TResult>object will complete when the Stream for writing data to the Internet resource is available.

NoteNote

The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: ExternalThreading. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Silverlight 8.1

Windows Phone 8.1, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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