C# get file name from URL

Question

How can I download file name from URL ?

Like if I have URL like http://localhost/?downloadFile=56 and server will return file example.png . Because when I try to use

WebClient wc = new WebClient();
wc.DownloadFileAsync(url, "{FILE-NAME}");

I having problem to get the file name automatically.

Answer 1

Browsers will use the contents of the filename parameter of the Content-Disposition header as the default filename. If such a header is not available, browsers will typically use a generated filename based on the final component of the URL's path component.

See some additional information here: http://blogs.msdn.com/b/ieinternals/archive/2010/06/07/content-disposition-attachment-and-international-unicode-characters.aspx

Answer 2

I'd think you'd have to download the file and then get the file name from the downloaded file. Not sure how this is a programming question though.