Problem with moving the rows up and down in a GridView

Hi,
 I have a GridView and want to enable the user to move the rows up and down. Here is the code I have which should do that, but the rows don't move up or down: 
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
  {
  string Qry = string.Empty;
  if (e.CommandName == "Up")
  {
  int index = Convert.ToInt32(e.CommandArgument);
  if (index == 0)
  {
  Label3.Text = "You Cant move record' Up";
  Label3.Visible = true;
  return;
  }
  GridViewRow row = GridView1.Rows[index];
  Label LblinID = (Label)row.FindControl("lblid");
  conn.Open();
  Qry = "Select RedBr from dbTable where RedBr = ''" + LblinID.Text + "''";
  SqlCommand Command1=new SqlCommand(Qry,conn);
  string SeqNo = Command1.ExecuteScalar().ToString();
  conn.Close();

  if (Convert.ToInt16(SeqNo) > 1)
  {
  Qry = "Select RedBr from dbTable where RedBr = ''" + (Convert.ToInt16(SeqNo) - 1) + "''";
  conn.Open();
 
  string PreDisplayID = Command1.ExecuteScalar().ToString();
  conn.Close();
  Qry = "Update dbTable Set RedBr = ''" + (Convert.ToInt16(SeqNo) - 1) + "'' Where RedBr = ''" + LblinID.Text + "'';";
  Qry += "Update dbTable Set RedBr = ''" + Convert.ToInt16(SeqNo) + "''Where RedBr = ''" + Convert.ToInt16(PreDisplayID) + "'';";
  conn.Open();
  Command1.ExecuteNonQuery();
  conn.Close();
  bind();
 
  }
  }
  if (e.CommandName == "Down")
  {
  int index = Convert.ToInt32(e.CommandArgument);
 
  GridViewRow row = GridView1.Rows[index];
  Label LblinID = (Label)row.FindControl("lblid");

  conn.Open();
  Qry = "Select Max(RedBr) from dbTable";
  SqlCommand Command1 = new SqlCommand(Qry, conn);
  string MaxSeqNo = Command1.ExecuteScalar().ToString();
  conn.Close();
  if (Convert.ToInt16(index + 1) == Convert.ToInt16(MaxSeqNo))
  {
  Label3.Text = "You Cant move record down";
  Label3.Visible = true;
  return;
  }
 
  Qry = "Select RedBr from dbTable where RedBr = ''" + LblinID.Text + "''";
  conn.Open();
  string SeqNo = Command1.ExecuteScalar().ToString();
  conn.Close();

  if (Convert.ToInt16(MaxSeqNo) > Convert.ToInt16(SeqNo))
  {
  Qry = "Select RedBr from dbTable where RedBr = ''" + (Convert.ToInt16(SeqNo) + 1) + "''";
  conn.Open();
  string PostDisplayID = Command1.ExecuteScalar().ToString();
  conn.Close();

  Qry = "Update dbTable Set RedBr = ''" + (Convert.ToInt16(SeqNo) + 1) + "'' Where RedBr = ''" + LblinID.Text + "'';";
  Qry += "Update dbTable Set RedBr = ''" + Convert.ToInt16(SeqNo) + "'' Where RedBr = ''" + Convert.ToInt16(PostDisplayID) + "'';";
 
  conn.Open();
  Command1.ExecuteNonQuery();
  conn.Close();
  bind();
  }
  }
  }
Could anybody help me please, and tell me where I go wrong? I have a feeling that it even doesn't enter the GridView1_RowCommand block, since when I put Response.Write(index) at the beginning it doesn't shows when I view the site in browser.???
Thank you very much in advance.