A Windows Phone 7 App from the Ground Up

using System.Runtime.Serialization;
using System.Collections.ObjectModel;
using System.Collections.Generic;
using System.Xml.Serialization;

using MyLastFm.Rest;

namespace MyLastFm.Model
{
    [DataContract(Name = "image")]
    public class Image
    {
        public Image()
        {
            Sizes = new ObservableCollection<ImageSize>();
        }

        [XmlArray("sizes")]
        [XmlArrayItem("size")]
        [DataMember]
        public ObservableCollection<ImageSize> Sizes { get; set; }

        [DataMember(Name="url")]        
        public string Uri { get; set; }

        public override int GetHashCode()
        {
            if (string.IsNullOrEmpty(Uri) == false)
                return Uri.GetHashCode();

            return base.GetHashCode();
        }
    }
}