asked on

Nested IF loop in Control Source of Form

Suppose that I have four textboxes on a form (Balance, BalanceComments, StartDate, & Alert) Currently what I have is this:

IF Balance is null AND the difference between today's date and StartDate is less than 14 days, THEN the Alert box will display "Balance Confirmation Letter Missing". Here is the function that I am putting in the control source of the Alert box in the function and it works perfectly!

=IIf(IsNull([RecBalConfLetter]) And DateDiff("d",Date(),[StartDate])<14,"Balance Confirmation Letter Missing","No Alerts")

Now what I want is IF Balance is null AND BalanceComments is null AND the difference between today's date and StartDate is less than 14 days, THEN the Alert box will display "Balance Confirmation Letter Missing". Basically the difference is that now I also want to check the BalanceComments field to see if it is null or not. How do I edit my current (above) function to achieve this?

Thanks in advance.

ASKER CERTIFIED SOLUTION

morpheus30

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

nico5038

Nesting IIF is possible in the True and/or False part like:
=IIF(<condition>,True,False)
nested:
=IIF(<condition>,=IIF(<condition>,True,False),False)
or
=IIF(<condition>,True,=IIF(<condition>,True,False))

Getting the idea ?

Nic;o)

TextReport

Nic;o) I see you are up to your old tricks ;-) copying the extra =

=IIF(<condition>,IIF(<condition>,True,False),False)
or
=IIF(<condition>,True,IIF(<condition>,True,False))

Cheers, Andrew

TextReport

Nesting IIF() can get very confusing, you can also use the Switch() function

Switch(Condition1, Return1, Condition2, Return2, ...., CondiotionX, ReturnX, True, ReturnIfAllEsleFailed)

Cheers, Andrew

Aapkaahmad

ASKER

morpheus30, I had already tried what you are suggestion and it did not work.

nico5038, TextReport....
Can you use your examples to try to make the function that I am trying to make?

=IIf(IsNull([RecBalConfLetter]) And DateDiff("d",Date(),[StartDate])<14,"Balance Confirmation Letter Missing","No Alerts")

Thanks.

nico5038

=IIf(IsNull([RecBalConfLetter]) And DateDiff("d",Date(),[StartDate])<14 AND BalanceComments is null,"Balance Confirmation Letter Missing",IIf(IsNull([RecBalConfLetter]) And DateDiff("d",Date(),[StartDate])<14,"Balance Confirmation Letter Missing","No Alerts"))

It will however be a bit "strange" that both tested conditions give the same error message when true....

Nic;o)

nico5038

Better this time Andrew :-)

Nic;o)

TextReport

Nic;o) Not Bad but your mixing your IsNull and Is Null options if both true coditions return the same string then I would do it in 1 IIF()

=IIf((IsNull([RecBalConfLetter]) And DateDiff("d",Date(),[StartDate])<14 AND IsNull(BalanceComments)) or (IsNull([RecBalConfLetter]) And DateDiff("d",Date(),[StartDate])<14),"Balance Confirmation Letter Missing","Balance Confirmation Letter Missing","No Alerts")

Cheers, Andrew

nico5038

Just offered room to have different messages Andrew :-)

Nic;o)

Aapkaahmad

ASKER

morpheus30,

Its weird but your original function was correct!

Enjoy the points. Thanks guys for helping out.

morpheus30

I guess sometimes it pays to just state the obvious, huh???

Thanks Aapkaahmad!!!