Enum that defines the type of events that are possible when calling a custom advanced object selector.
| BeginSession | This event means that we are beginning a search session. | 
| EndSession | This event means that the search session has ended. | 
| OpenAndSearch | This event means that the object selector is to be opened to search. This is the main event. | 
| SetSearchFilter | This event means that a request to set the search field was sent. |