[FLEX-33683] Bad ordering of ListCollectionView addAllAt

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache Flex 4.10.0
• Fix Version/s: Apache Flex 4.11.0
• Component/s: Collections
• Environment: Flex 4.10 (compiled for AIR 3.4, Flash Player 11.4
• Assignee: Unassigned
• Reporter: Marcus Wilkinson
• Created: 27/Aug/13 10:15
• Updated: 16/Sep/13 13:36
• Resolved: 13/Sep/13 00:02

Description

Steps to reproduce:

1) Create an ArrayCollection (collectionA) with N elements
2) Create a second ArrayCollection (collectionB) with less than N elements
3) Call collectionA.adAll(collectionB)

Expected result:
All elements of collectionB are added to the end of collectionA

Actual Result
All elements of collectionB are added to collectionA at position [collectionB.length]

Suggested fix:
ListCollectionView.addAllAt : 664
https://github.com/apache/flex-sdk/blob/develop/frameworks/projects/framework/src/mx/collections/ListCollectionView.as#L664
Change
var maxLength:int = length
to
var maxLength:int = this.length;