private void button1_Click(object sender, EventArgs e)
        {
            SqlConnection myConnection = new SqlConnection (@"Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\TEST6.mdf;Integrated Security=True;Connect Timeout=30");
            try
            {
                myConnection.Open();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
            SqlCommand com = new SqlCommand(@"BACKUP DATABASE TEST6 TO DISK = 'C:\TEST6.bak' WITH INIT , NOUNLOAD ,  NOSKIP , STATS = 10, NOFORMAT", myConnection);
            SqlDataReader myreader = com.ExecuteReader();
        }