Retrieving a particular Datagrid Cell

[Brian Conway]

How can I code something to pull a particular cells information in a
datagrid and assign it to a variable? I have a button that I want to user
to click on, and when they do this it will pull the information from that
row and assign them into variables. From there I want to do a
Server.Transfer to another form and pass that row information into a
multi-line TextBox on the other form. This is on a webform. I can get the
values by making session variables with and it will pass to the other form,
but that defeats the purpose of a Server.Transfer doesn't it? I also need
to know how to make a new line in a multiline box, when constructing the
display on the called form.
Session["xUnit"] = e.Item.Cells[1].Text;