angular-ui/ui-grid

With large data and grouping, expand/collapse rows seems to be very slow.

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#4,988 opened on Jan 19, 2016

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 (4 comments) (2 reactions) (0 assignees)JavaScript (2,496 forks)batch import
help wantedseverity: performancetype: enhancement

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Description

I have more than 60000 rows and group them into several groups. When expand/collapse rows, it take at least several seconds to re-draw the grid.

Here is a plunker to show the problem: http://plnkr.co/edit/5C7B3RU0kLszzgyr7xyf?p=preview

However, in v2 with the same data set and grouping setting, it seems to be quite fast. Is there any way to improve the performance or why it becomes so slow in v3.

Contributor guide

Research direction
Profile the expand/collapse operation using browser DevTools to identify slow re rendering paths. Investigate if the issue is due to excessive DOM updates or inefficient data binding in ui grid v3. Consider using virtual scrolling or reducing re renders. Compare with v2 to understand changes.
Tech stack
javascriptangular
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.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
AngularJavaScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50