Coding to Change Data in Form Field

[GeorgeL]

Have Form & SubForm; want to change data in a Form Field
after lose focus in SubForm Field.

Cannot get Access to recognise Field name in Form.

Please advise.

Thanks!!!!

 

[Marshall Barton]

Have Form & SubForm; want to change data in a Form Field
after lose focus in SubForm Field.

Cannot get Access to recognise Field name in Form.

Don't know what you've tried, but I would expect this to
work:

In the subform control's LostFocus (actually I would
probably use AfterUpdate) event procedure"

Parent.mainfieldname = Me.subsfieldname