c# - How can i use binary Serialization for a List<objects> -

public class profile {     public string name { get; set; }     public string camerainfo { get; set; }     // , many other properties describing profile class } 

i have list of objects of same class list channels=new list() , there string holds file name. have put both dictionary:

 dictionary<string, list<profile>> dchannellist = new dictionary<string, list<profile>>(); 

so every time user creates new profile want append same file. , distinguish each filename. kind of serialization suggested?