Tree/leaf and links

Question

Hi,
I just created a tree based on sql, and it's great. But i like whenever users click branches or leaves, these branch/leaf will point to new pages. How to configure this?
By the way, it looks the htmldb How-to url is changed. What is the new url for html how-to?
Thanks.
Fei

Answer 1

hi fei--
if you edit the tree definition of your newly created tree, you'll see that it's really defined as a sql query. the fouth column selected out in this query is your link. if you opted not to have your tree link to anything during the process of using our wizard to create your tree, you'll find that fourth column is null. so if you made your tree off the emp table, your might look like this...
select "EMPNO" id,
"MGR" pid,
"ENAME" name,
null link,
null a1,
null a2
from "#OWNER#"."EMP"
...and if you change that fourth column like so...
select "EMPNO" id,
"MGR" pid,
"ENAME" name,
'f?p=&APP_ID.:1:&APP_SESSION.::NO::P1_EMPNO:'||"EMPNO" link,
null a1,
null a2
from "#OWNER#"."EMP"
...you'd find that clicking on an employee's name in your tree would link you over to page 1 setting :P1_EMPNO to the value of that emp's empno. the better way to do this, though, would be to set your linking up as you go through the tree wizard. the ninth step of that wizard asks you to "Identify Query". that screen has a "Link Option" field on it. it defaults to "Nothing", but it sounds as if you'd like it to link somewhere in your app. to have it do so, simply select the "Existing Application Item" option in that radio group. the next screen will then help you set up that link.
either of the above two approaches should work fine, but let us know if you need further assistance.
regards,
raj
ps-the htmldb how-to's are currently at http://otn.oracle.com/products/database/htmldb/howtos/index.html .i don't think they've been moved recently, but that's at least where they are now.