check for two blank cells before populating a 3rd.

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slinger - 25 Oct 2006 19:21 GMT

I'm trying to do a chart using dates. I would like to set it so that if A1,
or B1 is blank, then C1 is also blank. If BOTH A1 and B1 contain information,
then C1 = A1 + 1.

I have tried this, and it doesn't work.

=IF(AND(ISBLANK($A1)),(ISBLANK(B1))),"",($A1)+1

I have also tried a few other things, all of which don't work.

Any help would be greatly appreciated.

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Dave F - 25 Oct 2006 19:25 GMT

=IF(COUNTBLANKS(A1:B1)=2,"",A1+1)

Enter in C1

Dave

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Brevity is the soul of wit.

> I'm trying to do a chart using dates. I would like to set it so that if A1,
> or B1 is blank, then C1 is also blank. If BOTH A1 and B1 contain information,
[quoted text clipped - 7 lines]
>
> Any help would be greatly appreciated.

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Dave F - 25 Oct 2006 19:30 GMT

Should be: =IF(COUNTBLANK(A1:B1)=2,"",A1+1)

Also the formula you use below is almost correct. If you want to use that
format then try this: =IF(AND(ISBLANK($A1),(ISBLANK(B1)),"",$A1+1)

Dave

Signature

Brevity is the soul of wit.

> =IF(COUNTBLANKS(A1:B1)=2,"",A1+1)
>
[quoted text clipped - 13 lines]
> >
> > Any help would be greatly appreciated.

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Bernard Liengme - 25 Oct 2006 19:28 GMT

You had some problems with parentheses and inconsistent use of $s but, more
importantly, you need OR not AND.
IF A or B is blank then C is blank
=IF(OR(ISBLANK(A1),ISBLANK(B1)),"",A1+1)
best wishes

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Bernard V Liengme
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> I'm trying to do a chart using dates. I would like to set it so that if
> A1,
[quoted text clipped - 9 lines]
>
> Any help would be greatly appreciated.

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Biff - 25 Oct 2006 19:34 GMT

Try this:

>if A1, or B1 is blank

Does blank mean EMPTY?

One way:

=IF(OR(A1="",B1=""),"",A1+1)

Biff

> I'm trying to do a chart using dates. I would like to set it so that if
> A1,
[quoted text clipped - 9 lines]
>
> Any help would be greatly appreciated.

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Kevin Vaughn - 25 Oct 2006 19:36 GMT

It looks like you would want to use OR instead of AND.

=IF(OR(ISBLANK($A1),(ISBLANK(B1))),"",$A1+1)

However, as I recall from reading other posts re charting, I believe you
would want to return #n/a instead of null, so try changing "" in the formula
to na()

=IF(OR(ISBLANK($A1),(ISBLANK(B1))),NA(),$A1+1)

Also, if the blanks are results of formulas, try changing isblank(a1) to a1=
""

=IF(OR($A1 = "",B1 = ""),NA(),$A1+1)

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Kevin Vaughn

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Bernard Liengme - 25 Oct 2006 20:14 GMT

Also note that if a formula returns an empty string (e.g let A2 have the
formula =IF(A1>5,A1,"") )
then function ISBLANK(A2) will always be FALSE no mater what A2 displays.
But =COUNTBLANK(A2) will be 1 if the IF fails.
best wishes

Signature

Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

> I'm trying to do a chart using dates. I would like to set it so that if
> A1,
[quoted text clipped - 9 lines]
>
> Any help would be greatly appreciated.

Reply to this Message