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BackgroundWorker::ProgressChanged Event

Occurs when ReportProgress is called.

Namespace:  System.ComponentModel
Assemblies:   System.ComponentModel.EventBasedAsync (in System.ComponentModel.EventBasedAsync.dll)
  System (in System.dll)

public:
 event ProgressChangedEventHandler^ ProgressChanged {
	void add (ProgressChangedEventHandler^ value);
	void remove (ProgressChangedEventHandler^ value);
}

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. 
void backgroundWorker1_ProgressChanged( Object^ /*sender*/, ProgressChangedEventArgs^ e )
{
   this->progressBar1->Value = e->ProgressPercentage;
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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