How to display only those columns in the gridview according to which dropdownlist the user selects
<p>For example i have three dropdownlists and the the user selects Say Name and PIN dropdownlist i want results that match the two to be displayed not any other what should I do?</p>

<p>Please help! :/</p>

<p><strong>EDIT:</strong></p>

<p>What i want to do is based on what dropdown list the user makes the selection from i want to display only those columns in the gridview on the next page and two fields name and pin corresponding to those rows will always be displayed ... if i try permutaion combinations i would have to make 81 sql queries. What should I do?</p>
