Is IsBlank() just for Excel spreadsheet and not for VBA?

[HilaryF]

Is it true that IsBlank() can only be used inside an Excel cell, and not in VBA code inside your workbook? If so, then would the best bet be to test the length of the value of the cell (in VBA) to determine whether it's blank or not??? Is there a list anywhere of which functions can be used only in Excel, which ones only in VBA, and which ones in both? I'm finding this very confusing.
Thanks a lot.

 

[Greg Truby]

One way amongst many...

If rng.Formula = vbNullString Then
...code if blank...
End If

 

[TommyGun]

To answer one question...just test the contents of the cell in VBA...

If Range("A1") = vbNullString Then 'or it is blank
    Msgbox "Blank Cell"
End If

 

[Greg Truby]

Note that Tommy's first will return true if the value is blank, i.e. [A1] could hold a formula like =IF(B1=0,"","x") and if [B1] is zero, you'd get a true (which you may or may not want).

 

[MartinK]

As an equivalent for ISBLANK in VBA use

IsEmpty(RangeReference)

Regards,
Martin

 

[Greg Truby]

Nifty, Martin. I'd not thought of dropping a range ref inside IsEmpty() before. Testing in the Immediate window, it appears to work quite nicely with anything except a non-contiguous range.

 

[MartinK]

dropping a range ref inside IsEmpty() before

I am sorry Greg, that's a misunderstanding. IsEmpty checks just the first cell of the range, therefore:
<pre><SPAN style="color:#00007F">Sub</SPAN> TestBlanks()
<SPAN style="color:#00007F">Dim</SPAN> cl <SPAN style="color:#00007F">As</SPAN> Range
<SPAN style="color:#007F00">'</SPAN>
<SPAN style="color:#007F00">' this will work</SPAN>
<SPAN style="color:#00007F">If</SPAN> [AND(ISBLANK(A1:A10))] <SPAN style="color:#00007F">Then</SPAN> MsgBox "All Empty"
<SPAN style="color:#007F00">'</SPAN>
<SPAN style="color:#007F00">' and this will not</SPAN>
<SPAN style="color:#00007F">Set</SPAN> cl = [A1:A10]
<SPAN style="color:#00007F">If</SPAN> IsEmpty(cl) <SPAN style="color:#00007F">Then</SPAN> MsgBox "All Empty"
<SPAN style="color:#007F00">'</SPAN>
<SPAN style="color:#007F00">' and this of course works</SPAN>
<SPAN style="color:#00007F">Set</SPAN> cl = [A1]
<SPAN style="color:#00007F">If</SPAN> IsEmpty(cl) <SPAN style="color:#00007F">Then</SPAN> MsgBox cl.Address & " Empty"
<SPAN style="color:#00007F">End</SPAN> <SPAN style="color:#00007F">Sub</SPAN></PRE>

Sorry for the misleading contribution

Best regards,
Martin