WebClient.UploadData Method (String, Byte)
Uploads a data buffer to a resource identified by a URI.
Assembly: System (in System.dll)
- Type: System.String
The URI of the resource to receive the data.
- Type: System.Byte
The data buffer to send to the resource.
The address parameter is a null reference (Nothing in Visual Basic).
The URI formed by combining BaseAddress, and address is invalid.
data is a null reference (Nothing in Visual Basic).
An error occurred while sending the data.
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.
This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing.
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.