If a form has no records and no new records can be added, its Detail section
goes completely blank. Then referrring to the non-existent text box results
in an error.
To work around that, test The RecordCount of the RecordsetClone of the form
to see if there are any records:
=IIf([Sub1].[Form].[RecordsetClone].[RecordCount] = 0, 0,
Nz([Sub1].Form![txt1],0))
You example suggests this might be a report. If so, see:
Bringing the total from a subreport onto a main report
at:
http://allenbrowne.com/casu-18.html
--
Allen Browne - Microsoft MVP. Perth, Western Australia.
Tips for Access users -
http://allenbrowne.com/tips.html
Reply to group, rather than allenbrowne at mvps dot org.
"Mike" <lo********@gmail.com> wrote in message
news:11**********************@b68g2000cwa.googlegr oups.com...
I have a parent form with two subforms on it. Each subform lists
certain records and then totals up one of the fieldsd. The parent form
then totals up the two text boxes. The problem is that if there are no
records for one of the subform's query, then I get an error (obviously
you can't add a value from a text box if it does not exist...):
Subform 1:
ItemX 10
ItemY 5
ItemZ 14
Subtotal1 29
Subform 2:
ItemA 1
ItemB 4
ItemC 45
Subtotal2 50
Parent form:
Grand Total 79
I tried using an IIF() to see if the subform's text box was null
=IIF
(
IsNull(rpt.Report!txt1), 0, rpt.Report!txt1) +
IsNull(rpt.Report!txt2), 0, rpt.Report!txt2)
)
but that still gave me an error. Any suggestions?
Thanks!
Mike
