How to pass value to some view parameters for a nested combo, on load ? 11g

Hi, I have a requirement for to do two combos, in a master-detail relationship.
The first one it's a very simple combo, a simple query in DB, so far so good. The second one depends on first and depends either from the username, that I get from a Payload binding (two parameters in where clause).
In the first activity on my flow it's work very well. The user chooses the "idMaster", a valueChangeListener event runs an ExecuteWithParams OperationBinding and fills up the nested combo.
But, I've tried in some many ways to fill both combos and bring in their previously selected values, in the next task, but until now I'm not able to do that. I believe that I have to, somehow, call ExecuteWithParams before setting the defaut value. It's this the correct approach ? I tried it on managed bean constructor, but it not works.
So, how can I call a VO, passing parameters values into it, fill this nested combo, and set this pre-selected value, before pages load?
Any ideias?
Thanks.

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Message was edited by:
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Message was edited by:
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Message was edited by:
Danny Roach

How to pass value to some view parameters for a nested combo, on load ? 11g

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