public void getUserList() { sList.ForEach(i => Debug.Print("{0}\t", i)); userList u = new userList(); sList = u.getUsers(); userGrid.Rows.Clear(); foreach (var item in sList) { DataGridViewRow row = (DataGridViewRow)userGrid.RowTemplate.Clone(); row.CreateCells(userGrid, item.Name, item.Age, item.Gender,item.Address,item.UserType); userGrid.Rows.Add(row); } }