Datagrid, bound column, hyperlink

[Sobert]

Hi,

[Framework 1.1]
I have a datagrid, in which I have 3 databounded columns.
This datagrid is in a panel.
I have another panel with a form.
I have also a global Integer in order to store an ID.
I want to make the first columns look like an hyperlink, and when I click I
put the ID in the Integer.
How can I implement a kind of "onclick" on that ?
How can I do that ?

Thanks !