Parameters

address

A string that specifies the URI of the resource to receive the file. [Edit]

fileName

A string that specifies the file to send to the resource. [Edit]

Returns

A byte array containing the body of the response, if any, from the server hosting the resource. [Edit]

Permissions

Type	Reason
System.Security.Permissions.FileIOPermission [Edit]	Requires permission to access path information and read files. See System.Security.Permissions.FileIOPermissionAccess.PathDiscovery and System.Security.Permissions.FileIOPermissionAccess.Read.

Exceptions

Type	Reason
System.Net.WebException	The absolute URI is not valid. -or- filename is null or string.Empty or contains invalid characters, or the specified path to the file does not exist. -or- An error occurred while opening the stream or uploading the file. -or- There was no response from the server hosting the resource. -or- The Content-Type header begins with "multipart". [Edit]
System.Security.SecurityException	Local file access has not been granted. [Edit]

Remarks

This method is equivalent to WebClient.UploadFile(string, string) (address, "POST", filename).

If the WebClient.BaseAddress property of the current instance is not string.Empty, address is combined with WebClient.BaseAddress to form the absolute URI of the requested data. If the WebClient.BaseAddress property of the current instance is string.Empty, address is required to be the absolute URI of the requested data. If the WebClient.QueryString property of the current instance is not string.Empty, it is appended to address.

Note: This method sends a local file to a resource. The underlying request is made using the POST method.

[Edit]

Requirements

Namespace: System.Net
Assembly: System (in System.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0