Parameter Passing - Same Page. General

Question

Does anybody have a source for general examples on the following topics:
- Passing parameters from a portlet in one section of a page to a portlet in another section of the same page.
- Submitting input from a form to a stored procedure.
I am new to portal (old to PL/SQL) and quite stuck on this subject.
Any help would be greatly appreciated.
Nathan.

Answer 1

Here is the example I built before, one report password parameter to another report on a page. Yu can do the similar thing to pass parameter from you chart to your report. The import thing is that the link on the calendar is not link to the report directly, in stead it link back to the page with a parameter, the report picks up the parameter and render:
Report 1: summary report
SQL report, on scott.dept:
select htf.anchor('http://iasqa-ultra1.us.oracle.com:7777/servlet/page?_pa
geid=117&_dad=wwv_30898&_schema=WWV_30898&_mode=3&dept='| |deptno, deptno) aaa, dname, loc from SCOTT.dept
The url here is the page url with extra parameter for dept, the bind variable in the detail report
Report 2: detail report
SQL report, on scott.emp
select * from scott.emp where deptno = :dept
Add the following PL/SQL code in the "before displaying the page"
wwv_30898.wwv_name_value.replace_value(
l_arg_names, l_arg_values, p_reference_path| |'.dept',
wwv_30898.wwv_standard_util.string_to_table2(nvl(get_value('dept'), 10)));
Build a page and include these 2 portlets, then when you click
on the link of the summary report, the page will be refreshed,
and the detail report changed based on the data from the summary report.