typed dataset - dataAdapter - parameter question

[Guest]

Hi,

I have a typed DataSet (created with VS), two dataAdapters and a component.
In this DS ther are two tables and a relation between them (fi tblUsers and
tblUserDetails)

On my form I have a datagrid that is filled up with the data from tblUser

What i would like to happen is this:
clicking on a record gives me the details(from tblUserDetails) for that
record.
In the dataAdapter(DAuserDetails) i have a parameter (@username), but all
this does not seem to work, because I have no idea how to pass that param to
a dataview

Can anyone help?