simple wpf entity framework databinding to ms DataGridView and Telerik RadGridView

main Xaml Window: Codebehind: namespace WpfApplication1 { ///

/// Interaction logic for MainWindow.xaml ///

public partial class MainWindow : Window { StpDbEntities1 _stpDbEnt = new StpDbEntities1(); public MainWindow() { InitializeComponent(); } private void Window_Loaded(object sender, RoutedEventArgs e) { MyDataGrid.ItemsSource = _stpDbEnt.tMachine.Local; MyRadGridView.ItemsSource = _stpDbEnt.tMachine.Local; _stpDbEnt.tMachine.Load(); //Window1 w1=new Window1(); //w1.Show(); //Show first Name - not necesarry var machinename = _stpDbEnt.tMachine.First().Name; if (machinename == null) throw new ArgumentNullException("machinename"); MessageBox.Show(machinename); } private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) { _stpDbEnt.SaveChanges(); } } }