DesignerEventHandler Delegate
Assembly: System (in system.dll)
'Declaration Public Delegate Sub DesignerEventHandler ( _ sender As Object, _ e As DesignerEventArgs _ ) 'Usage Dim instance As New DesignerEventHandler(AddressOf HandlerMethod)
/** @delegate */ public delegate void DesignerEventHandler ( Object sender, DesignerEventArgs e )
Not applicable.
Parameters
- sender
The source of the event.
- e
A DesignerEventArgs that contains the event data.
When you create a DesignerEventHandler delegate, you identify the method that will 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 example demonstrates registering a DesignerEventHandler and handling the DesignerCreated and DesignerDisposed events.
Public Sub LinkDesignerEvent(ByVal eventService As IDesignerEventService) ' Registers an event handler for the DesignerCreated and DesignerDisposed events. AddHandler eventService.DesignerCreated, AddressOf Me.OnDesignerEvent AddHandler eventService.DesignerDisposed, AddressOf Me.OnDesignerEvent End Sub Private Sub OnDesignerEvent(ByVal sender As Object, ByVal e As DesignerEventArgs) ' Displays designer event information on the console. Console.WriteLine(("Name of the root component of the created or disposed designer: " + e.Designer.RootComponentClassName)) End Sub
public void LinkDesignerEvent(IDesignerEventService eventService)
{
// Registers an event handler for the DesignerCreated and
// DesignerDisposed events.
eventService.add_DesignerCreated(new DesignerEventHandler(
this.OnDesignerEvent));
eventService.add_DesignerDisposed(new DesignerEventHandler(
this.OnDesignerEvent));
} //LinkDesignerEvent
private void OnDesignerEvent(Object sender, DesignerEventArgs e)
{
// Displays designer event information on the console.
Console.WriteLine("Name of the root component of the created "
+ "or disposed designer: " + e.get_Designer().
get_RootComponentClassName());
} //OnDesignerEvent
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.