WebClient.OnDownloadProgressChanged Method (DownloadProgressChangedEventArgs)

 

Raises the DownloadProgressChanged event.

Namespace:   System.Net
Assembly:  System (in System.dll)

Protected Overridable Sub OnDownloadProgressChanged (
	e As DownloadProgressChangedEventArgs
)

Parameters

e
Type: System.Net.DownloadProgressChangedEventArgs

A DownloadProgressChangedEventArgs object containing event data.

Classes that inherit from this class can override this method to perform additional tasks when the DownloadProgressChanged event occurs.

Raising an event invokes the event handler through a delegate. For more information, see NIB: Raising an Event.

The OnDownloadProgressChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors:

When overriding OnDownloadProgressChanged in a derived class, be sure to call the base class’s OnDownloadProgressChanged method so that registered delegates receive the event.

The following code example shows an implementation of this method that can be customized by a class derived from WebClient.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 2.0
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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