WPF-ComboBox的数据绑定

 ObservableCollection<ProductImg> imgs = new ObservableCollection<ProductImg>();   //集合，即数据源

         comboBox1.SelectedValuePath = "Id";   //程序内部维护的值
         comboBox1.DisplayMemberPath = "Img";  //显示的内容
         comboBox1.ItemsSource = imgs;  //数据源
         comboBox1.SelectedValue = 3；  //选中的值

　　　　　　　//声明数据上下文
            DataClasses1DataContext db = new DataClasses1DataContext();
            List<TBProduct> pros = new List<TBProduct>();
            //查出数据源
            var linq = (from p in db.TBProduct 
                       select p).Take(10);
            var linq1 = (from p in db.TBProClassRelation select p).ToList();
            //绑定到ComboBox控件中
            this.cbProductType.ItemsSource = linq1;
            this.cbProductType.SelectedValuePath = "ID";
            this.cbProductType.DisplayMemberPath = "Name";