Επεξεργασία

Κοινή χρήση μέσω

ComponentRenameEventHandler Delegate

  • Reference

Definition

Namespace:
System.ComponentModel.Design
Assembly:
System.ComponentModel.TypeConverter.dll
Assembly:
System.dll
Assembly:
netstandard.dll

Represents the method that will handle a ComponentRename event.

public delegate void ComponentRenameEventHandler(System::Object ^ sender, ComponentRenameEventArgs ^ e);
public delegate void ComponentRenameEventHandler(object sender, ComponentRenameEventArgs e);
public delegate void ComponentRenameEventHandler(object? sender, ComponentRenameEventArgs e);
[System.Runtime.InteropServices.ComVisible(true)]
public delegate void ComponentRenameEventHandler(object sender, ComponentRenameEventArgs e);
type ComponentRenameEventHandler = delegate of obj * ComponentRenameEventArgs -> unit
[<System.Runtime.InteropServices.ComVisible(true)>]
type ComponentRenameEventHandler = delegate of obj * ComponentRenameEventArgs -> unit
Public Delegate Sub ComponentRenameEventHandler(sender As Object, e As ComponentRenameEventArgs)

Parameters

sender
Object

The source of the event.

e
ComponentRenameEventArgs

A ComponentRenameEventArgs that contains the event data.

Attributes
ComVisibleAttribute

Examples

The following example demonstrates registering a ComponentRenameEventHandler and handling the ComponentRename event.

public:
   void LinkComponentRenameEvent( IComponentChangeService^ changeService )
   {
      // Registers an event handler for the ComponentRename event.
      changeService->ComponentRename += gcnew ComponentRenameEventHandler(
         this, &ComponentRenameEventHandlerExample::OnComponentRename );
   }

private:
   void OnComponentRename( Object^ /*sender*/, ComponentRenameEventArgs^ e )
   {
      // Displayss component renamed information on the console.
      Console::WriteLine( "Type of the component that has been renamed: " +
         e->Component->GetType()->FullName );
      Console::WriteLine( "New name of the component that has been renamed: " +
         e->NewName );
      Console::WriteLine( "Old name of the component that has been renamed: " +
         e->OldName );
   }

public void LinkComponentRenameEvent(IComponentChangeService changeService)
{
    // Registers an event handler for the ComponentRename event.
    changeService.ComponentRename += new ComponentRenameEventHandler(this.OnComponentRename);            
}

private void OnComponentRename(object sender, ComponentRenameEventArgs e)
{
    // Displayss component renamed information on the console.           
    Console.WriteLine("Type of the component that has been renamed: "+e.Component.GetType().FullName);                  
    Console.WriteLine("New name of the component that has been renamed: "+e.NewName);
    Console.WriteLine("Old name of the component that has been renamed: "+e.OldName);
}

Public Sub LinkComponentRenameEvent(ByVal changeService As IComponentChangeService)
    ' Registers an event handler for the ComponentRename event.
    AddHandler changeService.ComponentRename, AddressOf Me.OnComponentRename
End Sub

Private Sub OnComponentRename(ByVal sender As Object, ByVal e As ComponentRenameEventArgs)
    ' Displays component renamed information on the console.           
    Console.WriteLine(("Type of the component that has been renamed: " + e.Component.GetType().FullName))
    Console.WriteLine(("New name of the component that has been renamed: " + e.NewName))
    Console.WriteLine(("Old name of the component that has been renamed: " + e.OldName))
End Sub

Remarks

When you create a ComponentRenameEventHandler 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 Handling and Raising Events.

Extension Methods

GetMethodInfo(Delegate)

Gets an object that represents the method represented by the specified delegate.

Applies to

See also