websocket-sharp System.EventArgs Contains the event data associated with a event. The event occurs when the WebSocket receives a text or binary data frame. If you want to get the received data, you should access the or properties. Property System.String Gets the received data as a . A that contains the received data. To be added. Property System.Byte[] Gets the received data as an array of . An array of that contains the received data. To be added. Property WebSocketSharp.Opcode Gets the type of the received data. One of the values that indicates the type of the received data. To be added.