Assembly: System.Net (in System.Net.dll)
When you create a delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate.
If the server does not send the size of the downloaded file (such as in the case of a passive FTP connection), ProgressPercentage may always be zero.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.