void updateDataGridView() { Cursor.Current = Cursors.WaitCursor; dgvUser.Rows.Clear(); serviceDA = new DBControllerWSClient(); users = new BindingList <user> (serviceDA.queryAllUser()); for (int i = 0; i < users.Count; i++) { dgvUser.Rows.Add(new String[] { users[i].user1, users[i].expirationDate.ToString() }); } Cursor.Current = Cursors.Arrow; }