How to bind nested class objects to DataGridView?

Hi all,

I have 2 classes like this:

namespace NHibernate.Examples.UserDeptModule
{
    public class Dept
    {
        private Guid id;
        private String deptName;
        private String deptTel;

        public virtual Guid Id
        {
            get { return id; }
            set { id = value; }
        }

        public virtual String DeptName
        {
            get { return deptName; }
            set { deptName = value; }
        }        

        public virtual String DeptTel
        {
            get { return deptTel; }
            set { deptTel = value; }
        }        

        public override String ToString()
        {
            return deptName;
        }
    }
}

namespace NHibernate.Examples.UserDeptModule
{
    public class User
    {
        private Guid id;
        private Guid dept_id;
        private Dept dept;
        private string userName;

        public User()
        {
        }

        public virtual Guid Id
        {
            get { return id; }
            set { id = value; }
        }

        public virtual Guid Dept_Id
        {
            get { return dept_id; }
            set { dept_id = value; }
        }

        public virtual Dept DeptRef
        {
            get { return dept; }
            set
            {
                if (value != null)
                {
                    this.dept_id = value.Id;
                }
                dept = value;
            }
        }

        public virtual string UserName
        {
            get { return userName; }
            set { userName = value; }
        }

    }
}


My project is under NHibernate, and two class is done in many-to-one manner. Now I want to show user information to DataGridView including Dept's deptName and deptTel. How to do this?

Thank you very much.

--
Best regards,
Diviner.