Uploads the specified name/value collection to the resource identified by the specified URI.
Syntax
Parameters
- address
- data
Returns
A byte array containing the body of the response from the resource.
Exceptions
Type Reason System.Net.WebException The absolute URI is not valid.
-or-
data is null.
-or-
An error occurred while opening the stream or uploading the data.
-or-
There was no response from the server hosting the resource.
-or-
The Content-Type header is not null, and is not "application/x-www-form-urlencoded".
Remarks
The WebClient.UploadValues(string, System.Collections.Specialized.NameValueCollection) method sends a System.Collections.Specialized.NameValueCollection to a server. This method blocks while uploading the data. To continue executing while waiting for the server's response, use one of the erload:System.Net.WebClient.UploadValuesAsync methods.
If the underlying request is not understood by the server, the underlying protocol classes determine what occurs. Typically, a System.Net.WebException is thrown with the WebException.Status property set to indicate the error.
If the Content-type header is null, the WebClient.UploadValues(string, System.Collections.Specialized.NameValueCollection) method sets it to "application/x-www-form-urlencoded".
If the WebClient.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 WebClient.BaseAddress to form the absolute URI of the requested data. If the WebClient.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.
This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing.
Requirements
Assembly: System (in System.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0