Currently, if you have a conditional formatting rule "equals 0", all fields with a true zero-value, or fields without a value trigger the rule.
It is not possible to add a rule that triggers on "no value". It should be possible, however.
Hi Ulrich, thanks for reporting.
Please could you attach a sample file with issue.
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Created attachment 105717 [details]
Sorry, first I thought the issue is so simple that a test case isn't actually needed, but then I lost that bug in the personal radar. Anyway here's a test case where you see that cells with no value are treated the same as those with value zero when the condition is "equals zero".
Since Ulrich provided a sample file, I think this should be changed to UNCONFIRMED.
Agreed..this could be a useful feature to differentiate empty cell (no value) and zero value within CF.
Set cell cursor on Cell A1. Define condition as: Condition type "Formula is" with formula "AND(A1=0;NOT(ISBLANK(A1)))" or with formula "IF(ISBLANK(A1);FALSE();A1=0)" on range "A1:A7".
Because the address A1 is relative it adapts for the other cells of the range to e.g "AND(A7=0;NOT(ISBLANK(A7)))" for cell A7.
Unfortunately the ODF part 2 has in section "6.3.5 Conversion to Number" the rule:
"If the expected type is Number, then if value is of type Reference ... If the cell is empty (blank), use 0 (zero) as the value. ..."
The comparison with operator = and one value 0 expects a number from the reference A1. So getting "A1=0 return false for an empty cell A1" seems only possible, if not using namespace "of:".
You can use condition as <Cell value - equal - ""> and style Default for it to resolve your problem when value in cell equal zero. This condition should be first in list of conditions for your range