Show border color in AdvancedDataGrid selected row in Flex

How can I show the borderColor of selected row in AdvancedDataGrid in Flex 4.6. You can see the following image for your reference.

Selected row is in the AdvancedDataGrid realized through dedicated Sprite, which is used as a canvas for drawing. To create border in the selection marker you need to create a custom class based on the AdvancedDataGrid and override protected method drawSelectionIndicator.

The following example should produce a selection marker with 1px wide red border:

public class GridWithBorderedSelectionMarker extends AdvancedDataGrid {
    override protected function drawSelectionIndicator(
            indicator:Sprite, x:Number, y:Number, width:Number,
            height:Number, color:uint,
            itemRenderer:IListItemRenderer):void {
        if (isRowSelectionMode()) {
            width = unscaledWidth - viewMetrics.left - viewMetrics.right;
        }
        var borderColor:uint = 0xff0000;
        var g:Graphics = Sprite(indicator).graphics;
        g.clear();
        g.beginFill(borderColor);
        g.drawRect(0, 0, width, height);
        g.beginFill(color);
        g.drawRect(1, 1, width - 2, height - 2);
        g.endFill();
        indicator.x = x;
        indicator.y = y;
    }
}