palantir/blueprint

Table2 column cells overlap column header when frozen

Open

#5470 opened on Jul 27, 2022

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P2Package: tableType: bughelp wanted

Description

Environment

@blueprintjs/table 4.1.2

Code Sandbox

https://codesandbox.io/s/blueprint-table2-freeze-column-ookcsc

Steps to reproduce

  1. Click on the Freeze first column button.

Actual behavior

  • The frozen column's cells shift upwards, overlapping the column's header
  • When the enableRowHeader prop is true, the frozen column's cells do not shift

Expected behavior

  • The frozen column's cells remain in place

Contributor guide

Tech stack
typescriptreactcss
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
ReactCSSBlueprint Table2
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate the Table2 component's frozen column implementation. Focus on how cell positions are calculated when columns are frozen. The issue indicates that the row header presence changes behavior; look at the CSS and JavaScript that handle row header offset. Check if there's a missing adjustment when row header is disabled. Relevant files likely include table2 cell rendering and column freezing logic.