Malfunctioning of Poplist while setting a default value in it via program

Hi,
I have 2 Pages.
1)Search Page 2)Generic
I need to add the a value into a Poplist in Generic Page from a Search page.
and I need to set the added value(from Search Page) as the default in the Poplist.
I am able to add that value into Poplist in Generic page.and I used following line to set it as the default in PR()
favfluidChoice.setSelectedValue(fluid);
The new value(fluid variable) is getting defaulted.
However, when I change the entry in the Poplist, I still see the programmetically set value.
Ex: I have set Fluid = AIR programmetically.
Now when I run the Page,even though I change the Poplist entry to say.. WATER, I stil see AIR in it
How can I solve it?
Thanks,
Gowtam.

How are you adding the new value to the poplist ? Try adding it in the first row of the PopLists VO and remove the blank field by setting includeBlanks property to false.
Thanks

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