Thank you frankhassanabad very much. Nice to meet you. I want write a application like custom datasource.In this application.I will use some library of jasper support.Then,I use ant to complier to jasperReport.I don't know in jasperReport have a libary for support custom input Control. Thanks.Sorry about my English. My email : lamnhungoc@gmail.com I'm happy if I make friend with you. Thank you.