RSSChannelModel.cs CampusAppWP8::Model::events_news::RSSChannelModel CampusAppWP8::Model::events_news usingCampusAppWP8.Model; usingSystem.Collections.ObjectModel; usingSystem.Xml.Serialization; namespaceCampusAppWP8.Model.events_news { publicclassRSSChannelModel:BaseModel { [XmlElement("item")] publicObservableCollection<RSSModel>item{get;set;} publicRSSChannelModel() { this.item=newObservableCollection<RSSModel>(); } publicObservableCollection<RSSModel>Item { get { returnthis.item; } set { if(value!=this.item) { this.item=value; inti=0; foreach(RSSModelrssIteminthis.item) { rssItem.Index=i++; } NotifyPropertyChanged("item"); } } } } }