ASP.NET - swaping sub items in third party grid

a third party grid is being used , where its structure

Id      content        employee    
      Sony        headcafe      up    down
1      nokia       swappp      up    down
      coke        coke         up    down

      Sony2        headcafe2   up    down
2     nokia2       swappp2    up     down
      coke 2       coke    2    up    down

in above structure is a third party grid...   here i wan t to swap only sub items

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