MindFusion.Common.NotifyCollectionChangingEventArgs Constructor | JavaScript Component Suite

Initializes a new instance of the NotifyCollectionChangingEventArgs class.

Namespace: MindFusion.Common
File: Events.js

Syntax

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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.

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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; } }

JavaScript

Copy Code

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;
     }
}

Syntax

Parameters

Example

See Also