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WebClient.OpenWrite Method (Uri)

Opens a stream for writing data to the specified resource.

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

'Declaration
Public Function OpenWrite ( _
	address As Uri _
) As Stream
'Usage
Dim instance As WebClient
Dim address As Uri
Dim returnValue As Stream

returnValue = instance.OpenWrite(address)
public Stream OpenWrite (
	Uri address
)
public function OpenWrite (
	address : Uri
) : Stream
Not applicable.

Parameters

address

The URI of the resource to receive the data.

Return Value

A Stream used to write data to the resource.

Exception typeCondition

WebException

The URI formed by combining BaseAddress, and address is invalid.

-or-

An error occurred while opening the stream.

The OpenWrite method returns a writable stream that is used to send data to a resource. This method blocks while opening the stream. To continue executing while waiting for the stream, use one of the OpenWriteAsync methods.

If the BaseAddress property is not an empty string ("") and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.

This method uses the STOR command to upload an FTP resource. For an HTTP resource, the POST method is used.

NoteNote:

This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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