public class CustomerViewModel
    {
        public int CustomerID { get; set; }
        public String Name { get; set; }
        public int Count { get; set; }

        public override string ToString()
        {
            return Name;
        }

        public override bool Equals(object obj)
        {
            if (obj is Customer)
            {
                var c = (CustomerViewModel)obj;
                return c.CustomerID == this.CustomerID;

            }
            else
            {
                return false;
            }
        }

        public override int GetHashCode()
        {
            return CustomerID.GetHashCode();
        }
    }