NotifyCollectionChangingEventArgs Constructor

Initializes a new instance of the NotifyCollectionChangingEventArgs class.

Namespace: MindFusion.Common
File: Events.js

 Syntax

JavaScript

function NotifyCollectionChangingEventArgs (action, [changes, [index]])

 Parameters

action

NotifyCollectionChangedAction. The action that caused the event.

changes

Optional.

Array. The items affected by the change.

index

Optional.

Number. The index where the change occurred.

 Example

The following code handles the collectionChanging event of the decorations property of a DecorationLayer object in a map.

JavaScript

var m = MindFusion.Mapping;var markers = new m.DecorationLayer("Images");...................
//add some Marker-s to the decorations property
......................markers.decorations.collectionChanging.addEventListener(handleCollectionChanging);
function (handleCollectionChanging) (sender, args )
{
     if(args.action == m.NotifyCollectionChangedAction.Add)
     {
          args.cancel = true;
     }
}