Pass parameter to form from webpage?

Hi guys,
I'm aware that you are able to pass parameters between forms using CALL_FORM (using parameter list).
Is it possible to pass parameters to a form from the webpage?

i am trying to pass the parent_id as a parameter to a portal page but am not able to... i can add it to the list of in parameters to the PL/SQL based parent id but when i add the parent id to the url then i get no result... i created a custom attribute for the parent id since there is no attribute build other then page group and page id... when I set the Parent ID attributes default value in the attribute properties of the item type based on PL/SQL it just brings back results for the default value and if i pass a different value for ithe parent id i dont get the correct result I get the result for the default parent id.
I am using the followin url to pass the parent id
http://localhost:7778/portal/page?_pageid=76,87832&_dad=portal&_schema=PORTAL&parentid=22223

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What are the steps i want to do.
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Edited by: Kanish on Jul 21, 2010 11:38 PM

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I am passing a parameter value from parent page to it's region using taskflow input parameter. Now value for one of the parameter changes inside child/region taskflow and I need to make this value available to main page taskflow.
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Hi Frank,
I tried to follow steps mentioned in your post but encountered error that "The scope of the referenced object #{viewScope.parentBeanName} is shorter than referring object childBeanName"
Let me explain what I did:
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7. Ran the page but encountered the error.
Did I miss something somewhere?
Initially I got error where #{viewScope.parentBeanName} returned NULL due to parentBeanName not instantiated. I created a variable in mainPageDef with it's default value pointing to #{viewScope.parentBeanName.variableName}, which I guess will instantiate the bean in viewScope.
After this I got error of shorter scope. It never reached to code in Step 6 during execution cycle.
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Jai
Edited by: Jai Om on Dec 18, 2012 2:38 PM

Pass parameter to form from webpage?

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