Occurs when a component is in the process of being added.
event ComponentEventHandler ComponentAdding
This event occurs during load and when the user creates a new component. You can cancel the process of adding a component by throwing an exception here.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.