mister.magoo (1/16/2013)

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pwalter83 (1/16/2013)

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mister.magoo (1/16/2013)

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And do you actually have a component on the page called GridView1?

Thanks a lot for your help, I renamed the dropdownlist as GridView1 and it worked !

That's nice, but for your sake and others who follow you, I would change the drop down list name to something more meaningful and then modify the code to correctly reference the drop down list name...GridView1 isn't really a good name for a drop down list now is it? 😉