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WebClient.UploadData Method (Uri, Byte[])

Uploads a data buffer to a resource identified by a URI.

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

public byte[] UploadData(
	Uri address,
	byte[] data
)

Parameters

address
Type: System.Uri
The URI of the resource to receive the data.
data
Type: System.Byte[]
The data buffer to send to the resource.

Return Value

Type: System.Byte[]
A Byte array containing the body of the response from the resource.

ExceptionCondition
ArgumentNullException

The address parameter is null.

WebException

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

-or-

data is null.

-or-

An error occurred while sending the data.

-or-

There was no response from the server hosting the resource.

The UploadData method sends a data buffer to a resource.

This method uses the STOR command to upload an FTP resource. For an HTTP resource, the POST method is used. If the underlying request is not understood by the server, the underlying protocol classes determine what occurs. Typically, a WebException is thrown with the Status property set to indicate the error.

The UploadData method sends the content of data to the server without encoding it. This method blocks while uploading the data. To continue executing while waiting for the server's response, use one of the UploadDataAsync 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.

NoteNote

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

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.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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