Colin Childs created FLEX-33708:
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Summary: ArrayCollection addItemAt() does not work correctly after
removing sort
Key: FLEX-33708
URL: https://issues.apache.org/jira/browse/FLEX-33708
Project: Apache Flex
Issue Type: Bug
Components: Collections
Affects Versions: Apache Flex 4.10.0
Environment: Tested on Windows 7 with AIR simulator and on iPhone 5
Reporter: Colin Childs
After sorting an ArrayCollection, removing the sort, then adding an item at an
index always adds it to the end of the list. I ran into this while sorting a
dropdown alphabetically, then setting the ArrayCollection's sort to null, and
trying to add something at the top of the list, such as "Select One". This
works fine in Flex 4.6.
Here is a simple example (and workaround):
var col:ArrayCollection = new ArrayCollection();
col.addItem("1");
col.addItemAt("2", 0); //works as expected
col.addItemAt("3", 2); //works as expected
col.sort = new Sort();
col.refresh();
col.sort = null;
//workaround:
//var temp:ArrayCollection = new ArrayCollection(col.toArray());
//col = temp;
col.addItemAt("0", 0);
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