ITypeDescriptorContext.OnComponentChanging Method
Raises the ComponentChanging event.
Assembly: System (in System.dll)
Use the OnComponentChanging method to send notification that an instance of an object is about to be changed. This method also returns a value indicating whether this object can be changed. When false is returned, do not change the object.
Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.
The OnComponentChanging method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors
When overriding OnComponentChanging in a derived class, be sure to call the base class’s OnComponentChanging method so that registered delegates receive the event.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
