MindFusion.Charting for JavaScript Programmer's Guide
NotifyCollectionChangedAction Class
See Also
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C#
Visual Basic
Java
JavaScript
C++
XAML

Specifies the type of the collection changed action.

Namespace: MindFusion.Common
File: Events.js

## Syntax

JavaScript Copy Code
// class NotifyCollectionChangedAction.prototype = {}

## Example

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

JavaScript Copy Code
var m = MindFusion.Mapping; markers.decorations.collectionChanging.addEventListener(handleCollectionChanging); function (handleCollectionChanging) (sender, args ) { if(args.action == m.NotifyCollectionChangedAction.Add) { args.cancel = true; } }

## Inheritance Hierarchy

MindFusion.Common.NotifyCollectionChangedAction

## See Also

NotifyCollectionChangedAction Members
MindFusion.Common Namespace