how change position of datagridview row to new row (row with star) by currencay manager?

See more:

C#

WinForms

Hi every body; I used currencymanager to change position of selected row; it works well; but when I want change the row position to the new row; it doesn't work; just can change between first row to last row;
how can solve it?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;

namespace GlassProducingManagement
{
    public partial class Customers : Form
    {
        SqlDataAdapter sqlda1;
        SqlConnection connection = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\Hadi\documents\visual studio 2010\Projects\GlassProducingManagement\GlassProducingManagement\GMPdata.mdf;Integrated Security=True;User Instance=True");
        DataTable dtCustomers;
        CurrencyManager CM1;
        public Customers()
        {
            InitializeComponent();
            sqlda1 = new SqlDataAdapter("Select * From Customers", connection);            
            dtCustomers = new System.Data.DataTable();
            sqlda1.Fill(dtCustomers);
            dataGridView1.DataSource = dtCustomers;
            CM1 = (CurrencyManager)(this.BindingContext[dtCustomers]);

        private void btGotoNewRow_Click(object sender, EventArgs e)
        {            
            
            CM1.Position = CM1.Count;            
            dataGridView1.FirstDisplayedScrollingRowIndex = dataGridView1.RowCount - 1;
        }
    }
}

thank you very much for helping;

hadi