as3 tilelist with custom itemrender add to selectedIndices - actionscript-3

Question

I create a TileList with custom renderer.
<s:BorderContainer
id="bcImage"
width="120"
height="99%"
borderVisible="true"
borderStyle="solid"
borderColor="#B3B3B3"
borderWeight="1"
cornerRadius="2"
backgroundAlpha=".8"
backgroundColor="#F8F8FF"
dropShadowVisible="true"
>
<mx:Canvas id="cvsImage" width="100%" click="cvsImage_clickHandler(event)">
<s:HGroup width="100%" paddingBottom="0" paddingTop="5" >
<s:CheckBox id="cbImgSelect"/>
<s:Label x="23" y="3" width="82" fontSize="11" fontWeight="normal" text="{data.imDate}"
textAlign="right" color="#000000"/>
</s:HGroup>
<mx:Image id="iconCanvas" x="10" y="20" width="99" height="99" horizontalAlign="center"
maintainAspectRatio="true" scaleContent="true"
verticalAlign="middle" mouseDown="iconCanvas_mouseDownHandler(event)"
>
</mx:Image>
</mx:Canvas>
<s:BorderContainer width="100%" y="124" height="25" bottom="1" left="3" right="3"
backgroundColor="#FFFFFF" id="bcTitre" borderAlpha="0" >
<s:VGroup width="100%" y="124" height="25" bottom="0" left="0" right="0"
paddingBottom="0" paddingTop="0" gap="0" click="iconCanvasLabel_mouseUp(event)">
<s:Label text="{data.imType}" height="50%" fontSize="10" paddingBottom="1" id="lType"
fontWeight="normal" width="99%" textAlign="center" toolTip="{data.imType}"/>
<s:Label text="{data.imStade}" fontSize="10" textAlign="center" paddingTop="1"
fontWeight="normal" width="99%" id="lStade" toolTip="{data.imStade}"/>
</s:VGroup>
</s:BorderContainer>
</s:BorderContainer>
My TileList has allowMultipleSelection enable.
I'd to check CheckBox when item is selected by click or by selection (continus or not) and if CheckBox.selected=true I'd like to show color selection around selected item.
Could you help me to do that ?
Best regards

Answer 1

It seems that you're trying to resolve the issue from opposite side, which is wrong
I suppose yo can consider following way:
set mouseEnabled to false for checkBox so that all the list item triggers click
alter default selection behaviour by intercepting changing event and doing something like
protected function lst_changingHandler(evt:IndexChangeEvent):void {
evt.preventDefault();
var ids:Vector.<int> = (evt.currentTarget as List).selectedIndices;
(evt.currentTarget as List).selectedIndices = ids.concat(new <int>[evt.newIndex]);
bind checkBox selected state to the renderer selected one