C # Socket Port detection

I need to judge if the port is occupied by the socket

Internal static bool Portinuse (int port)  
        {  
            bool inUse = false;  

            Ipglobalproperties ipproperties = Ipglobalproperties.getipglobalproperties ();  
            ipendpoint[] ipendpoints = Ipproperties.getactivetcplisteners ();  


            foreach (IPEndPoint endPoint in ipendpoints)  
            {  
                if (Endpoint.port = = Port)  
                {  
                    inUse = true;  
                    break;  
                }  
            }  


            return inUse;  
        }  

TCP UDP in port usage is different and does not conflict.