string conn = "Data Source=.;Initial Catalog=FriendsBookDB;User Id=sa;Password=win7";
SqlConnection con = new SqlConnection(conn);
SqlCommand cmd = new SqlCommand("select top 3 EmpId,employee from ppb",con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
con.Open();
da.Fill(dt);
hyp1.NavigateUrl = "http://" + dt.Rows[0][1];
My dt contains (Datatable):
1 www.facebook.com
2 www.twitter.com
3 www.google.com