private void ReceiveScriptBrickCollectionMessageAction(GenericMessage<List<Object>> message)
{
_actionsCollection = message.Content[0] as ActionsCollection;
_firstVisibleScriptBrickIndex = ((PortableListBoxViewPort)message.Content[1]).FirstVisibleIndex;
_lastVisibleScriptBrickIndex = ((PortableListBoxViewPort)message.Content[1]).LastVisibleIndex;
}