How to flush the data from datapage using refresh button in node level?

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Hi Everyone,

I have list of employees in data table. In front end I have Data page (Node Level) sourced drop down and Refresh Button. I want to add new employees then click on Refresh button the new employee results are visible in Drop Down. How to do this?. Please any one help me.

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@Nagarjuna Saidu you can use this below function to flush your dpage.

@(Pega-RULES:DeclarePages).pzDeleteAllInstancesOfDeclarativePage(tools, your data page).