private void FindButton_Click(object sender, RoutedEventArgs e) { if (txttim.Text.Trim() != "") { QLThuebaoDomainContext db = new QLThuebaoDomainContext(); if (chkInt.IsChecked == true) { EntityQuery<internet> Query = db.GetInternetsQuery(); LoadOperation<internet> Load = db.Load(Query.Where(p => p.user_name.Trim().Contains(txttim.Text.Trim())).OrderBy(p => p.ma_huyen), lo => { gridInt.Visibility = Visibility.Visible; gridmy.Visibility = Visibility.Collapsed; gridInt.ItemsSource = lo.Entities; }, null); } else { EntityQuery<mytv> Query = db.GetMytvsQuery(); LoadOperation<mytv> Load = db.Load(Query.Where(p => p.user_name.Trim().Contains(txttim.Text.Trim())).OrderBy(p=>p.ma_huyen), lo => { gridInt.Visibility = Visibility.Collapsed; gridmy.Visibility = Visibility.Visible; gridmy.ItemsSource = lo.Entities; }, null); } } }