Sending a list to a web service

[Webskater]

I have an object that contains a list of Email addresses and EmailIDs.

public class DataObjects
    {
        public class UserEmails
        {
            private string _Email;
            public string Email
            {
                get { return _Email; }
                set { _Email = value; }
            }

            private int _EmailID;
            public int EmailID
            {
                get { return _EmailID; }
                set { _EmailID = value; }
            }
        }
    }

And I populate it like this:

protected void GetEmails()
    {
        DataAccess da = new DataAccess(); //this is a separate Data Access class with loads of methods to access the database

        List<DataObjects.UserEmails> myUserEmailsList = new List<DataObjects.UserEmails>(); //create a list of UserEmails objects

        myUserEmailsList = da.getUserEmails(1); //this passes in a UserID to the data access function that returns me a list of emails for this user

        myPassedList(myUserEmailsList); //I pass the list to another function just to prove the data is there and can be retrieved.
    }

The last line in GetEmails passes the list to myPassedList

protected void myPassedList(IList EmailsList)
    {
        foreach (DataObjects.UserEmails myUserEmails in EmailsList) //loop through the list to prove it is populated etc.
        {
            int EmailID = myUserEmails.EmailID;
            string Email = myUserEmails.Email;
        }
    }

Everything above works fine. Here's the question. When I am at the point where I have populated the List of UserEmails - I need to pass it to a web service for someone else to access the data.

I pass my list to a function and I can loop through it by writing:

foreach (DataObjects.UserEmails myUserEmails in EmailsList)

which is fine, for me, because my application knows what DataObjects.UserEmails means ... the people receiving the list won't. They are just getting a list.

Can they loop through the list I pass them without knowing the structure of the object in the list and just extract the data?

Thanks for any help.

[Lightning]

The person who created that webservice has probably created the specs, if you follow those specs, the other side can handle your data