OnProgressChanged Method

BackgroundWorker.OnProgressChanged Method (ProgressChangedEventArgs)


Raises the ProgressChanged event.

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

abstract OnProgressChanged : 
        e:ProgressChangedEventArgs -> unit
override OnProgressChanged : 
        e:ProgressChangedEventArgs -> unit


Type: System.ComponentModel.ProgressChangedEventArgs

An EventArgs that contains the event data.

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

The OnProgressChanged 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 OnProgressChanged in a derived class, be sure to call the base class's OnProgressChanged method so that registered delegates receive the event.

The following code example demonstrates the use of the OnProgressChanged method to report the progress of an asynchronous operation. This code example is part of a larger example provided for the AsyncOperationManager class.

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

Universal Windows Platform
Available since 10
.NET Framework
Available since 2.0
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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