private void DeleteAll(object sender, RoutedEventArgs e)
{
Collection.Clear();
CollectionView.Clear();
CollectionSResultsView.Clear();
TreeViewAll.ItemsSource = TreeViewSResult.ItemsSource = null;
Add_Info_Button.Content = "_Add faculty...";
Delete_Button.Content = "_Delete";
Modify_Button.Content = "_Modify...";
Delete_All_Button.IsEnabled = false;
Delete_All_Button.Opacity = 0.7;
Delete_Button.IsEnabled = false;
Delete_Button.Opacity = 0.7;
Modify_Button.Opacity = 0.7;
Modify_Button.IsEnabled = false;
SSListButton.IsEnabled = false;
SSListButton.Opacity = 0.7;
AM_TB.Content = "";
}
