"Frank Kabel" wrote in message
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"Aladin Akyurek" schrieb im Newsbeitrag
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"Frank Kabel" wrote in message
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Hi
try the following
- select your cells in column B (assumption: you start in row 1)
- goto 'Format - Conditional Format'
- enter the following formula in this dialog:
=COUNTIF($C$1:$C$300,B1)0
- choose a format for these cells
[...]

Just

=MATCH(B1,$C$1:$C$300)

would be faster though.

Hi Aladin
always impressed about your knowledge about perfomance issues!
I thought COUNTIF would be faster.

The formula should be:

=MATCH(B1,$C$1:$C$300,0)

CountIf needs to look at the whole range C1:C300 for every value. MATCH will
stop looking further after a success.

Since we are talking of using in conditional formatting, the CountIf formula
can be shortened to:

=COUNTIF($C$1:$C$300,B1)

The speed difference will still hold though, excepting perhaps no success
cases.

Have you some details about the
performance difference (or a link to a previous discussion)

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http://www.mrexcel.com/board2/viewtopic.php?t=40233