Indra Gunawan writes:
 > okay.. I have this website like this:
 > on the left column I have a dtml tree, and on the right side, I have a
 > content that using SQL method and requires a parameter.
 > but when I try to expand or collapse a tree node... it returns an error
 > because the SQL method on the right columns ask for a parameter.  I can't
 > assign a default value for the parameter, since it wont show the right page.
 > Is there anyway to add a parameter to the link on the expand-collapse part
 > so my right column won't return error.
I think, you can customize URL generation.
The default method is "tpURL".

I did not try it, however. And I may be wrong that it can help you.


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