How do I pass values from a Gridview to a DetailsView?

[Midway]

Hi there,

I have this functionality on a gridview and a detailsview, when I select a
row on the gridview, a detailsview shows that specific record and that's
working all fine.

What I'm trying to do now is, when I click on the new button on the
detailsview, I want the detailsview to grab a couple of values from the
gridview's selected row and put them into fields on the detialsview.

how can I accomplish this?

Thanks very much for your help.

Manny