Namespace:
System.ComponentModel
Assembly:
System (in System.dll)
Visual Basic (Declaration)
<HostProtectionAttribute(SecurityAction.LinkDemand, SharedState := True)> _
Public Delegate Sub ProgressChangedEventHandler ( _
sender As Object, _
e As ProgressChangedEventArgs _
)
Dim instance As New ProgressChangedEventHandler(AddressOf HandlerMethod)
[HostProtectionAttribute(SecurityAction.LinkDemand, SharedState = true)]
public delegate void ProgressChangedEventHandler(
Object sender,
ProgressChangedEventArgs e
)
[HostProtectionAttribute(SecurityAction::LinkDemand, SharedState = true)]
public delegate void ProgressChangedEventHandler(
Object^ sender,
ProgressChangedEventArgs^ e
)
JScript does not support delegates.
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 Sub backgroundWorker1_ProgressChanged( _
ByVal sender As Object, ByVal e As ProgressChangedEventArgs) _
Handles backgroundWorker1.ProgressChanged
Me.progressBar1.Value = e.ProgressPercentage
End Sub
// 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.
void backgroundWorker1_ProgressChanged( Object^ /*sender*/, ProgressChangedEventArgs^ e )
{
this->progressBar1->Value = e->ProgressPercentage;
}
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
Reference