Won't happen if you want the array to be variable and the formula to cope
with it, as CONCATENATE won't support arrays, so you need a UDF

--
HTH

Bob Phillips

(remove nothere from email address if mailing direct)

"ExcelMonkey" wrote in message
...
Can anybody tell me how to do a conditional concatenate. I have to
columns
of data. Column A has numbers: 1-5 (A2:A6). Column B has booleans:
TRUE/FALSE (B2:B6)

A B
1 TRUE
2 FALSE
3 TRUE
4 FALSE
5 TRUE

in B7 I want to do an conditional concatenate using "&" character on
column
A using the booleans in column B. The result would like like this:
&1&3&5.
Note there is a "&" before the first number as well.

Thanks