Export (0) Print
Expand All

WebClient.OnUploadProgressChanged Method

Note: This method is new in the .NET Framework version 2.0.

Raises the UploadProgressChanged event.

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

protected virtual void OnUploadProgressChanged (
	UploadProgressChangedEventArgs e
)
protected void OnUploadProgressChanged (
	UploadProgressChangedEventArgs e
)
protected function OnUploadProgressChanged (
	e : UploadProgressChangedEventArgs
)

Parameters

e

An UploadProgressChangedEventArgs object containing event data.

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

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

The OnUploadProgressChanged 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 OnUploadProgressChanged in a derived class, be sure to call the base class’s OnUploadProgressChanged 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.

protected override void OnUploadProgressChanged (UploadProgressChangedEventArgs e)
{
    // Here you can perform any custom actions before the event is raised
    // and event handlers are called...

    base.OnUploadProgressChanged (e);

    // Here you can perform any post event actions...
}

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0

Community Additions

ADD
Show:
© 2014 Microsoft