In a project, I need to use multilevel data structure. For example, The top level is Country. The next level is state, which is called province in China. The last level is city. Would you please tell me how to achieve it using Ireport. Now I can implement two-step data structure using sub-report of Ireport, The main report is country list, The sub-report is state list, But I cannot edit sub-report into sub-report mentioned above. I can’t find useful information on the Internet. So, would you please tell me the solution. Thanks.
