Occurs after a connection between two WebPart or server controls has been terminated.
Assembly: System.Web (in System.Web.dll)
The event is associated with the OnWebPartsDisconnected method. The event is useful because after you know that a connection is terminated, you might want to inform the user, perform some cleanup actions in the code, or make other changes in the user interface (UI).
Page developers can associate a custom event handler with this event by adding the OnWebPartsDisConnected attribute to the <asp:webpartmanager> element in the page, and assigning a custom method name to the attribute.