File Upload and GridView

Hi,

I have a gridview with button in templatecolumn.On button click it will popup a lightbox with flashUpload.My requirement is to list all already uploaded files in the lightbox while clicking the button.

I am opening the lighbox from client side and trying to add controls inside the lightbox on server side(need to list all files in label).When I tried that in pageload(since pageLoad is firing before client side button click) it is working but it is not the required one becuase I need to capture the files based on the rows(primary key) in gridview.

Pls share some suggestions.

Thanks,
Saritha.