Filling 2 DropDown with same data

Hi to All,

I have two Dropdown on my web form, both have same value like numbers from 1 to 100 or 1 to 300 or may be 1 to 5000.
The last limit is depend om my search, Basically these dropdown shows Number of pages of my gridview.
My question is - "Is there any way so that i can reffer like dropdown1 = dropdown2 so that second dropdown can fill automatically ? B'cos it

will take long to fill Two dropdowns on a web form"

Thanks in Adv...
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