[FLEX-25071] removeAll() on a sorted ArrayCollection returns a RangeError: Index '-1'

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK 4.1 (Release)
• Fix Version/s: Apache Flex 4.10.0
• Component/s: Collections
• Labels: easyfix easytest
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Unassigned
• Reporter: Adobe JIRA
• Created: 25/Aug/10 18:57
• Updated: 12/May/13 23:09
• Resolved: 12/May/13 23:09

Description

We are seeing this bug as well in SDK 4.1. As comments in the original bug stated, the internal list is not synchronized with the ArrayCollection.

We have a DataGrid displaying a collection of objects in an ArrayCollection. When we sort the values in the datagrid, we get the error "Index '-1' specified is out of bounds" on calls to arrayCollection.removeAll().

Possibly relevant: had set arrayCollection.disableAutoUpdate() before calling removeAll().

original bug:
----------------------------

Steps to reproduce:
1. Create a sorted ArrayCollection
2. example: this._mySortedArrayCollection.sort = myAlphaSort;
3. populate the array and then remove any valid item with "removeItemAt"

Actual Results:
RangeError: Index '-1' specified is out of bounds.
at mx.collections::ArrayList/removeItemAt()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\collections\ArrayList.as:358]
at mx.collections::ListCollectionView/removeItemAt()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:601]
...
The RangError always says "Index '-1'" not matter what index value is entered. For example this._mySortedArrayCollection.removeItemAt(7); with return the above same RangeError saying "Index '-1'"

Expected Results:
The item at the selected index should be removed from the ArrayCollection

Workaround (if any):
None