Assembly: System (in System.dll)
[HostProtectionAttribute(SecurityAction.LinkDemand, SharedState = true)] public delegate void PropertyChangingEventHandler( Object sender, PropertyChangingEventArgs e )
is introduced in the .NET Framework version 3.5. For more information, see .NET Framework Versions and Dependencies.
When you create a delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event-handler delegates, see Events and Delegates.
The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: SharedState. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.