public partial class MainWindow : Window {
        public MainWindow() {
            InitializeComponent();
            GO();
        }

        public void GO() {
            myEntities a = new myEntities();
            var b = a.Person.ToList();

            for (int i = 0; i < b.Count; ++ i) {
                RowDefinition row = new RowDefinition();
                Data.RowDefinitions.Add(row);

                TextBlock id = new TextBlock();
                id.HorizontalAlignment = HorizontalAlignment.Center;
                id.VerticalAlignment = VerticalAlignment.Center;
                id.Text = b[i].id.ToString();
                Data.Children.Add(id);
                Grid.SetRow(id, i);
                Grid.SetColumn(id, 0);

                TextBlock name = new TextBlock();
                name.HorizontalAlignment = HorizontalAlignment.Center;
                name.VerticalAlignment = VerticalAlignment.Center;
                name.Text = b[i].name;
                Data.Children.Add(name);
                Grid.SetRow(name, i);
                Grid.SetColumn(name, 1);

                TextBlock lastname = new TextBlock();
                lastname.HorizontalAlignment = HorizontalAlignment.Center;
                lastname.VerticalAlignment = VerticalAlignment.Center;
                lastname.Text = b[i].lastname;
                Data.Children.Add(lastname);
                Grid.SetRow(lastname, i);
                Grid.SetColumn(lastname, 2);

                TextBlock surname = new TextBlock();
                surname.HorizontalAlignment = HorizontalAlignment.Center;
                surname.VerticalAlignment = VerticalAlignment.Center;
                surname.Text = b[i].surname;
                Data.Children.Add(surname);
                Grid.SetRow(surname, i);
                Grid.SetColumn(surname, 3);

                TextBlock age = new TextBlock();
                age.HorizontalAlignment = HorizontalAlignment.Center;
                age.VerticalAlignment = VerticalAlignment.Center;
                age.Text = b[i].age.ToString();
                Data.Children.Add(age);
                Grid.SetRow(age, i);
                Grid.SetColumn(age, 4);
            }
        }
    }