for (int i = 0; i < ds.Tables[0].Rows.Count; i++) { string conn = ConfigurationManager.ConnectionStrings["BaruEntities"].ConnectionString; SqlConnection con = new SqlConnection(conn); string query = "Insert into TrashExcel(No Pin,Nama, No HP,Tgl Lahir, No KTP) Values('" + ds.Tables[0].Rows[i][0].ToString() + "','" + ds.Tables[0].Rows[i][1].ToString() + "','" + ds.Tables[0].Rows[i][2].ToString() + "','" + ds.Tables[0].Rows[i][3].ToString() + "','" + ds.Tables[0].Rows[i][4].ToString() + "')"; con.Open(); SqlCommand cmd = new SqlCommand(query, con); cmd.ExecuteNonQuery(); con.Close();If you have solution for this please tell me and I'll appreciate it Thanks