[FLEX-22963] DataGroup uses invalid index with filtered Lists

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: Adobe Flex SDK Previous
• Component/s: Spark: DataGroup
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 02/Feb/10 15:15
• Updated: 15/Apr/11 14:57
• Resolved: 04/Feb/10 17:12

Description

Steps to reproduce:
1. DataProvider with a number of items (20) in a Spark List with filter & sort functions
2. Rename one of the items

Actual Results:
Crashes

Expected Results:
Works

Workaround (if any):
None

When I rename an element in the list, the ListCollectionView finds the index of the item in the base collection and dispatches the old/new locations to the DataGroup. However, the DataGroup tries to use the base index as an index into the layout, which contains fewer elements, having been filtered. My guess is that the first 2 lines (layout...) were the cause.

mx_internal function DataGroup.itemRemoved(...):void
{
if (layout)
layout.elementRemoved(index)
: