[FLEX-21282] DataGroup does removes and creates itemRenderers on CollectionEventKind.REPLACE

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: Adobe Flex SDK 4.1 (Release)
• Fix Version/s: Adobe Flex SDK Previous
• Component/s: Spark: DataGroup
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Browser: Opera; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 24/Sep/09 15:36
• Updated: 29/Sep/09 00:10
• Resolved: 29/Sep/09 00:10

Description

Flex 4.0.0.10396

The 'adjustAfterReplace' method in DataGroup simply calls itemRemoved for the old values and itemAdded for the newValues. This results in instantiating item renderers.

For performance it would be better to just set the data and invalidate size and displayList. I am not an expert so I might be missing some complex framework related stuff.