Assembly: System.Web (in system.web.dll)
'Declaration Public Event WebPartAdding As WebPartAddingEventHandler 'Usage Dim instance As WebPartManager Dim handler As WebPartAddingEventHandler AddHandler instance.WebPartAdding, handler
/** @event */ public void add_WebPartAdding (WebPartAddingEventHandler value) /** @event */ public void remove_WebPartAdding (WebPartAddingEventHandler value)
In JScript, you can handle the events defined by a class, but you cannot define your own.
The WebPartAdding event is raised by the OnWebPartAdding method after the process of adding a control to a zone has begun. This event provides an opportunity to cancel the process before it is complete. If the adding process is successful, this event is followed by the WebPartAdded event.
Page developers can provide custom handlers for the event by adding the OnWebPartAdding attribute to the <asp:webpartmanager> element in a page, and assigning a custom method name to the attribute.
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 EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.