ذخیره کردن گرید ویو در بانک

[fool66]

          string s = "";

            for (int i = 0; i < dataGridViewX1.Rows.Count; i++)

            { 

                s = s + "insert into DateFact values(" + dataGridViewX1.Rows[i].Cells[0].Value + ",'" + dataGridViewX1.Rows[i].Cells[1].Value + "',N'" + dataGridViewX1.Rows[i].Cells[2].Value + "',N'" + dataGridViewX1.Rows[i].Cells[3].Value + "')" + ";"; 

            }

            s = s.Remove(s.Length - 1, 1);

            SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirector  y|\bank\BAnbar.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True");

            con.Open();

            SqlCommand cmd = new SqlCommand(s, con);

            cmd.ExecuteNonQuery();

            con.Close();

ارور میده