public DataSourcesInCode()
{
InitializeComponent();
// Bind the category combo box to the category view
// and show the products of the first category in the data grid.
ClientView <Category> viewCategories = _scope.GetItems <Category>();
comboBox1.DisplayMemberPath = "CategoryName";
comboBox1.ItemsSource = viewCategories;
BindGrid(viewCategories.First().CategoryID);
}