Please try this very simple example below and let me know if you get
the same behavior. Select some or all items in the tile list and
click the test button. Try the same but with the checkbox selected.
Do you see the difference?
If you save off a TileList's selectedIndices, clear the data
provider, clear the selectedIndices, then re-populate the data
provider and re-apply the same selections, the setting of the
selectedIndices fails.
Does anyone know a workaround? Alex?
Can someone with moxie beat2 tell me if it still behaves this way?
thanks
charles
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
layout="absolute"
applicationComplete="appInit()">
<mx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
private function appInit():void
{
setData()
}
private function setData():void
{
for (var i:int=0; i<3; i++)
{
dataCollection.addItem(new String(i));
}
list.invalidateList();
}
private function doTest():void
{
// save selection
var indices:Array = list.selectedIndices;
status.text = "Before: SelectedIndex: " + list.selectedIndex +
"\n";
status.text += " SelectedIndices: " + indices.join(" ") +
"\n";
// simulate delete all then add back
dataCollection.removeAll();
if ( clearData.selected )
list.selectedIndices = new Array();
list.invalidateList();
setData();
// restore selection
list.selectedIndices = indices.reverse();
status.text += "\n";
status.text += "After: SelectedIndex: " +
list.selectedIndex + "\n";
status.text += " SelectedIndices: " +
list.selectedIndices.join(" ") + "\n";
}
]]>
</mx:Script>
<mx:VBox height="400">
<mx:HBox>
<mx:Button label="Test Selections" click="doTest()" />
<mx:CheckBox id="clearData" label="Clear selections inbetween
delete/add" />
</mx:HBox>
<mx:TileList id="list" allowMultipleSelection="true" width="250"
height="150" >
<mx:dataProvider>
<mx:ArrayCollection id="dataCollection" />
</mx:dataProvider>
</mx:TileList>
<mx:Panel title="Selection Info">
<mx:TextArea id="status" width="250" height="150" />
</mx:Panel>
</mx:VBox>
</mx:Application>
