Protected Event PropertyChanged As PropertyChangedEventHandler

Dim instance As CompositeFilterDescriptorCollection
Dim handler As PropertyChangedEventHandler
 
AddHandler instance.PropertyChanged, handler

protected event PropertyChangedEventHandler PropertyChanged

protected event PropertyChanged: PropertyChangedEventHandler; 

In JScript, you can handle the events defined by another class, but you cannot define your own.

protected: __event PropertyChangedEventHandler* PropertyChanged

protected:
event PropertyChangedEventHandler^ PropertyChanged