Deserialize json to list of T

Hi, I want deserialize the data into list GoogleImageURLs but following code returns 0 records. Please help Thanks.

[DataContract]
   public class GoogleImageURL : BindableBase
   {

       #region Feilds

       private int _width;
       private int _height;
       private string _imageId;
       private int _tbWidth;
       private int _tbHeight;
       private string _unescapedUrl;
       private string _url;
       private string _visibleUrl;
       private string _title;
       private string _titleNoFormatting;
       private string _originalContextUrl;
       private string _content;
       private string _contentNoFormatting;
       private string _tbUrl;

       #endregion

       #region Properties

       [DataMember]
       public int width
       {
           get{return _width;}
           set
           {
               if(_width != value)
               {
                   _width = value;
                   OnPropertyChanged("width");
               }
           }
       }
       [DataMember]
       public int height
           {
           get{return _height;}
           set
           {
               if(_height != value)
               {
                   _height = value;
                   OnPropertyChanged("height");
               }
           }
       }
       [DataMember]
       public string imageId
           {
           get{return _imageId;}
           set
           {
               if(_imageId != value)
               {
                   _imageId = value;
                   OnPropertyChanged("imageId");
               }
           }
       }
       [DataMember]
       public int tbWidth
           {
           get{return _tbWidth;}
           set
           {
               if(_tbWidth != value)
               {
                   _tbWidth = value;
                   OnPropertyChanged("tbWidth");
               }
           }
       }
       [DataMember]
       public int tbHeight
           {
           get{return _tbHeight;}
           set
           {
               if(_tbHeight != value)
               {
                   _tbHeight = value;
                   OnPropertyChanged("tbHeight");
               }
           }
       }
       [DataMember]
       public string unescapedUrl
           {
           get{return _unescapedUrl;}
           set
           {
               if(_unescapedUrl != value)
               {
                   _unescapedUrl = value;
                   OnPropertyChanged("unescapedUrl");
               }
           }
       }
       [DataMember]
       public string url
           {
           get{return _url;}
           set
           {
               if(_url != value)
               {
                   _url = value;
                   OnPropertyChanged("url");
               }
           }
       }
       [DataMember]
       public string visibleUrl
           {
           get{return _visibleUrl;}
           set
           {
               if(_visibleUrl != value)
               {
                   _visibleUrl = value;
                   OnPropertyChanged("visibleUrl");
               }
           }
       }
       [DataMember]
       public string title
           {
           get{return _title;}
           set
           {
               if(_title != value)
               {
                   _title = value;
                   OnPropertyChanged("title");
               }
           }
       }
       [DataMember]
       public string titleNoFormatting
           {
           get{return _titleNoFormatting;}
           set
           {
               if(_titleNoFormatting != value)
               {
                   _titleNoFormatting = value;
                   OnPropertyChanged("titleNoFormatting");
               }
           }
       }
       [DataMember]
       public string originalContextUrl
           {
           get{return _originalContextUrl;}
           set
           {
               if(_originalContextUrl != value)
               {
                   _originalContextUrl = value;
                   OnPropertyChanged("originalContextUrl");
               }
           }
       }
       [DataMember]
       public string content
           {
           get{return _content;}
           set
           {
               if(_content != value)
               {
                   _content = value;
                   OnPropertyChanged("content");
               }
           }
       }
       [DataMember]
       public string contentNoFormatting
           {
           get{return _contentNoFormatting;}
           set
           {
               if(_contentNoFormatting != value)
               {
                   _contentNoFormatting = value;
                   OnPropertyChanged("contentNoFormatting");
               }
           }
       }
       [DataMember]
       public string tbUrl
       {
           get { return _tbUrl; }
           set
           {
               if (_tbUrl != value)
               {
                   _tbUrl = value;
                   OnPropertyChanged("tbUrl");
               }
           }
       }

       #endregion

       public static void GetData(string p_SearchString)
       {
           try
           {
               //WebClient webClient = new WebClient();//Create WebClient Object.
               //string json = webClient.DownloadString("https://ajax.googleapis.com/ajax/services/search/images?v=1.0&q=" + p_SearchString);


               WebClient wc = new WebClient();
               wc.UseDefaultCredentials = true;
               var data = wc.DownloadString("https://ajax.googleapis.com/ajax/services/search/images?v=1.0&q=" + p_SearchString);
               MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(data));
               DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(List<GoogleImageURL>));
               var result = serializer.ReadObject(ms);

               List<GoogleImageURL> urls = (List<GoogleImageURL>)result;

               ms.Close();
               ms.Dispose();
           }
           catch
           {
               throw;
           }
       }