sub form

[digs]

I've got a form that looks up all event no's I then want to open up a form called employees which as a sub form called event details. The event details sub form contains the control event no the same as my search form. I am having a problem with the code to do this.

DoCmd.OpenForm "Employees", , , Me.EventNo = Forms!employees!EventDetails.Form.EventNo

Can anyon ehelp as this is driving me mad.