NotifyCollectionChangedEventArgs.oldItems Property

Gets the list of the items affected by a Remove action.

Namespace: MindFusion.Mapping
Package: Events.js

 Syntax

JavaScript

Object.defineProperty(NotifyCollectionChangedEventArgs.prototype, "oldItems", { value: Array });

 Property Value

Array. The list of affected items.

 Example

The following code handles the collectionChanged event of the decorations property of a DecorationLayer object.

JavaScript

var m = MindFusion.Mapping;var markers = new m.DecorationLayer("Images");...................
//add some Marker-s to the decorations property
......................markers.decorations.collectionChanged.addEventListener(handleCollectionChanged);
function (handleCollectionChanged) (sender, args )
{
      if(args.oldItems.contains(marker1))
      {
          //do something
      }
}