FLEX - 将项添加到s：列表中来自套接字的已接收数据

I have s:list component in my MXML and a different actionsscript file which does the socket connection to the server. Everytime a user is connecting to the server I'm sending to all clients the updated users in the server by sending strings of ports (port for each user). Now, when the data gets to the client (to the action script file SocketData function), I want it to be added as an item to the s:List in the MXML file. How do I do such thing ? what it's called ?I have s:list component in my MXML and a differ