[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]

This view is a very simple view presenting the last event posted by the parent view to any subviews. Only the very last event object is kept by this view. The update method invoked by the parent view supplies new data in an object array, of which the view keeps the very last instance as the 'last' or newest event. The view always has the same schema as the parent view and attaches to anything, and accepts no parameters. Useful is the last view for example for "stocks.time_window(100).last()". Notice that "stocks.last().Count" and "stocks.win:length(10).std:lastevent().std:size()" must always return 0 or 1. Thus if 5 pieces of new data arrive, the child view receives 5 elements of new data and also 4 pieces of old data which is the first 4 elements of new data. I.e. New data elements immediatly gets to be old data elements. Old data received from parent is not handled, it is ignored. We thus post old data as follows: last event is not null + new data from index zero to N-1, where N is the index of the last element in new data

The following tables list the members exposed by the LastElementView type.

Public Properties

  NameDescription
EventType
Provides metadata information about the type of object the event collection contains.
(Overrides .EventType.)
HasViews
Test is there are any views to the Viewable.
(Inherited from ViewSupport.)
Id
Gets the unique id for the view
(Inherited from ViewSupport.)
Parent
Gets or sets the View's parent Viewable.
(Inherited from ViewSupport.)