angular-ui/ui-grid

Noticeable delay when grid columns are altered on large dataset

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#4,492 建立於 2015年10月8日

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 (0 留言) (0 反應) (0 負責人)JavaScript (5,395 star) (2,496 fork)batch import
help wantedseverity: performance

描述

Sample showing a grid with a large dataset: http://plnkr.co/edit/VCjtmkSjEMC59BFGmyT7?p=preview

Click the button at the top to cycle the grid columns being set to include only two, three then four fields. I notice around a 300ms delay until the grid redraws to show the changed headers. This makes the interface feel laggy. Scrolling through the dataset once the headers have updated is smooth however.

On a smaller dataset (comment out the "data = data.concat(data);" line), the rendering delay isn't as noticeable.

Are there any workarounds for this?

Thanks for the great library!

貢獻者指南

技術棧
javascript
領域
frontendperformance
議題類型
performance
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
3-5 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Familiarity with AngularPerformance profilingui grid internals
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
20
研究方向
Investigate the cause of the rendering delay when columns are changed. Focus on the grid's redraw mechanism, likely in the core rendering files. Use profiling tools to identify bottlenecks. Consider if the delay is due to DOM manipulation or data binding in Angular.