DLookUp Syntax for SubForm Control

[dar]

I’m pretty sure my problem is syntax.
MainForm is frmRHCF1
SubForm is RHCF1
Control on SubForm is Unit
MainForm and SubForm linked by PatientID

SubForm has Unit control:
Table = UnitAssignment
(holds therapists initials based on Unit) ex. FA2E = KW under OT

The code below works if I open SubForm stand alone.
If I open Main form, I receive Error message.

=DLookUp("Ottherapist","UnitAssignment","Unit=Forms!RHCF1.Unit")

I have searched for answers but seem to thick to grasp the correct syntax.
I went to website which had several examples, none of which I seem to make
work. So, please help here if you can.
Thanks

 

[DrGUI]

I'm assuming that the DLookup code is in the subform. It appears that the
last param is incorrect. Try the following:

=DLookUp("Ottherapist","UnitAssignment","Unit='" & Forms!RHCF1.Unit & "'")

 

[dar]

Now I get a #Name error message. AND now the stand alone subform does not
work. I copied and pasted the code below so as not to miss any punctuation.

 

[DrGUI]

Then the reference to the control is incorrect. You might want to try the
following:

Forms!RHCF1.Unit.value OR
Forms!RHCF1.Unit .text

 

[dar]

That doesn't seem to help any.
Any other suggestions: Does it matter where on the subform the control is
located?

 

[Jeff L]

When referring to a control on a subform the syntax is:

=DLookUp("Ottherapist","UnitAssignment","Unit = '" &
Forms!frmRHCF!RHCF1!Unit & "'")

 

[DrGUI]

Me.RHCF1.Unit

That doesn't seem to help any.
Any other suggestions: Does it matter where on the subform the control is
located?

 

[dar]

Thank you.
I now have that working, but need to know one more thing.
If the Unit is "abc" I do not want certain controls to be visible. I get it
to work for the first record, but as I move through records they do not show.

Ex: If Unit is "abc" Then lblLookUp.visible = false
About the 4th record the Unit changes to "xyz" but lblLookUp remains
invisible.
Which property do I want to put it in, and is there an additional condition
I need?

 

[Jeff L]

Just add an Else to your If statement. Else lblLookUp.visible = True

 

[dar]

Thank you again. You've been most helpful and straight to the point .