有多种方法实现
1、想简单,就用关联和表达式,参考帮助中“关联表”和“表达式”这两章:
http://www.foxtable.com/help/topics/0091.htm
http://www.foxtable.com/help/topics/0106.htm
2、用代码,参考:
http://www.foxtable.com/help/topics/1451.htm
http://www.foxtable.com/help/topics/1458.htm