Validation in af:query

Dear All,
I have created a af:query by dragging a vo on page, in that i have a createddt field with between clause, and i want the createddt to be mandatory in each search..how can i do it..?
Regards,
Santosh
Component     Version
=========     =======
ADF Business Components     11.1.1.59.23
Java(TM) Platform     1.6.0_21
Oracle IDE     11.1.1.4.37.59.23
Versioning Support     11.1.1.4.37.59.23

Hi peter,
I have created a view-creteria in vo and just dragged that viewcreteria from datacontrols to page to create querypanel and table.
Is ur createddt field is also coming from the vo u dragged or u added a new field?Yes.
Regards,
Santosh

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