int boxId=你的boxId;
string connString="连接字符串";
string sqlStr = "insert into SF_BoxInfo (BoxID) values (@BoxID)";
SqlConnection conn = new SqlConnection(connString);
SqlCommand cmd = new SqlCommand(sql, conn);
SqlParameter[] p ={
                   new SqlParameter("@BoxID",SqlDbType.Int)
                  };
P[0].Value=boxId;
cmd.Parameters.AddRange(p);
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();