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How to bind two different list to dropdown base on radiobutton selection

Posted By:      Posted Date: September 23, 2010    Points: 0   Category :SharePoint
  I have radio button and dropdown column types in sharepoint list, and apart from this i have two list. I want to bind the data to data from the two list base on the selection of radio button. If i select 'Yes' i want to bind from the one of two list, and when i select i want to bind it to another list. Is it possible in sharepoint ?. If yes can you help me out in this

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