wpf INotifyPropertyChanged的用法
wpf INotifyPropertyChanged的用法
http://www.eggheadcafe.com/community/xaml/56/10410005/inotifypropertychanged--in-wpf-c-using-linq-to-sql.aspx
wpf INotifyPropertyChanged的用法
http://www.eggheadcafe.com/community/xaml/56/10410005/inotifypropertychanged--in-wpf-c-using-linq-to-sql.aspx