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ProgressChangedEventHandler Delegate

Represents the method that will handle the ProgressChanged event of the BackgroundWorker class. This class cannot be inherited.

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

public delegate void ProgressChangedEventHandler (
	Object sender,
	ProgressChangedEventArgs e
)
/** @delegate */
public delegate void ProgressChangedEventHandler (
	Object sender, 
	ProgressChangedEventArgs e
)
Not applicable.

Parameters

sender

The source of the event.

e

A ProgressChangedEventArgs that contains the event data.

When you create a ProgressChangedEventHandler delegate, you identify a method to 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. For more information about event handler delegates, see Events and Delegates.

The following code example shows how to use the ProgressChangedEventHandler class. This example is part of a larger example for the BackgroundWorker class.

// This event handler updates the progress bar.
private void backgroundWorker1_ProgressChanged(object sender,
    ProgressChangedEventArgs e)
{
    this.progressBar1.Value = e.ProgressPercentage;
}

// This event handler updates the progress bar.
private void backgroundWorker1_ProgressChanged(Object sender,
    ProgressChangedEventArgs e)
{
    this.progressBar1.set_Value(e.get_ProgressPercentage());
} //backgroundWorker1_ProgressChanged

Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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