public void LineItemAddedToDisplayOrder(DisplayOrder order, DisplayLineItem lineItem) { if (websocket != null) { LineItemAddedToDisplayOrderRequestMessage message = new LineItemAddedToDisplayOrderRequestMessage(); LineItemAddedToDisplayOrder payload = new LineItemAddedToDisplayOrder(); payload.DisplayLineItem = lineItem; payload.DisplayOrder = order; message.payload = payload; websocket.Send(JsonUtils.serialize(message)); } }