private void button1_Click(object sender, RoutedEventArgs e)
{
Articlet ar = new Articlet();
List <Articlet> er = new List <Articlet>();
er.Add(ar.search(textBox.Text.Trim()));
Visitors_grid.ItemsSource = er;
}
public void fun()
{
Articlet art = new Articlet();
Visitors_grid.ItemsSource = art.retrieve();
}