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WebPartManager.WebPartAdding Event

Occurs during the process of adding a dynamic WebPart or other server control to a WebPartZoneBase zone.

Namespace:  System.Web.UI.WebControls.WebParts
Assembly:  System.Web (in System.Web.dll)

'Declaration
Public Event WebPartAdding As WebPartAddingEventHandler

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.

.NET Framework

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