vaadin / vaadin/spreadsheet

Conditional formatting stops formula evaluation

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Dominant language
Java
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50
Forks
53
Avg merge
1d 21h
Merged PRs (30d)
1

Description

Please see this spreadsheet: conditional formatting issue.xlsx

When a cell has a conditional formatting rule that references a formula cell, the referenced cell doesn't update properly when the cells used in the formula change.

In the attached spreadsheet, cell A2 is a formula, simply "=A1". Cell A3 has a conditional formatting rule that colors it red if the value is greater than the value in A2. Now the value in A2 is not updated when A1 changes.

This makes conditional formatting pretty much un-usable (at least for my use-case), as it only really supports static values.

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  4. Open a pull request that references the issue number.

Research direction

Open conditional.formatting.issue.xlsx and reproduce the case where A3's rule depends on formula cell A2, with A2 set to =A1. Trace how formula recalculation interacts with conditional formatting, then verify that changing A1 updates A2 and the conditional formatting result.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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