angular-ui/ui-grid

columnWidth not correctly computed if table initialized hidden

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#6,090 opened on Mar 17, 2017

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Description

brief desc:
condition: width is not fixed px but %, result: columnWidth not correctly computed if table initialized hidden and then click somewhere to show it steps:

  1. html like this: <div ng-show='table.show'><div ui-grid='table.option' style="width: 100%"></div></div> <a ng-click='table.click()'></a>

2 .js $scope.table={ show: false, option:{ .... }, click:function(){this.show = true} }

  1. result: columnWidth value is NaN so that all the width defined in columnDefs doesn't work, the table css looks not correct, and api.core.refresh() doesn't make things work right.
  2. if the initial value of table.show is true, everything works fine.

Contributor guide

Tech stack
javascript
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.
1-3 hours
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
AngularJSui grid
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate how ui grid calculates column widths when the grid container is initially hidden (ng show=false). The issue suggests that percentage widths are not computed correctly, resulting in NaN. Look into the grid's resize logic and initialization sequence in files like Grid.js or UiGridConstants.js. Check if the grid relies on container dimensions that are not available when hidden, and consider using a resize observer or recalculation on show.