You refer to an open form or report, or the subform or subreport of an open form or report, in an expression by typing its identifier.
To refer to an open form or report
For example, the following identifier refers to the Orders form:
Forms![Orders]
To refer to a subform or subreport
Refer to the subform or subreport control on the form or report that contains the subform or subreport, then use the Form or Report property of the control to refer to the actual subform or subreport.
For example, the following identifier refers to the Orders Subform subform on the Orders form:
Forms![Orders]![Orders Subform].Form
Notes