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BackgroundWorker.ProgressChanged Event

Occurs when ReportProgress is called.

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

'Declaration
Public Event ProgressChanged As ProgressChangedEventHandler
'Usage
Dim instance As BackgroundWorker 
Dim handler As ProgressChangedEventHandler 

AddHandler instance.ProgressChanged, handler

This event is raised when you call the ReportProgress method.

For more information about handling events, see Consuming Events.

The following code example demonstrates the use of the ProgressChanged event to report the progress of an asynchronous operation to the user. This code example is part of a larger example provided for the BackgroundWorker class.

' This event handler updates the progress bar. 
Private Sub backgroundWorker1_ProgressChanged( _
ByVal sender As Object, ByVal e As ProgressChangedEventArgs) _
Handles backgroundWorker1.ProgressChanged

    Me.progressBar1.Value = e.ProgressPercentage

End Sub

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0
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