Question

I have successfully moved items from one list to another, but there is one display issue, when I move item back from LIST2 to LIST1, then the item is positioned at the end, so I have scroll down to see if it is there or not.

How can I again make the listitems In LIST1 sorted or how to add it back to its original position?

I have written the code in .cs file so no jquery or javascript is required as an option.
This my code to move items in between lists:

 if (SelectedInvestorsLst.SelectedIndex > -1)
        {
            string _value = SelectedInvestorsLst.SelectedItem.Value;
            string _text = SelectedInvestorsLst.SelectedItem.Text;
            ListItem item = new ListItem();
            item.Text = _text;
            item.Value = _value;
            InstitutionLst.Items.Add(item);
            SelectedInvestorsLst.Items.Remove(item);
        }

Answer 1

Use the insert method

 InstitutionLst.Insert(0, Item);