angular-ui/ui-grid

Issue with Infinite scroll while scrolling upwards

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#5,555 opened on Jul 15, 2016

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help wanted

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Description

http://plnkr.co/edit/Ueb6gr3Z0xqX5jwm9RMI?p=preview

This is the plunkr on UI Grid Infinite scroll tutorial (Just made 1 change, replaced lastpage < 4 to 14)

To reproduce the issue: Keep scrolling down to atleast 7-8 pages. Now when you scroll upwards it is seen that there is no smooth scrolling, the data on the grid changes directly by 100 steps for example when I scroll from 700 to 600 instead of seeing all the records in between I notice a jump of 100 i.e. direct jump from 700 to 600 then directly to 500th record.. then to 400, etc Please help

Contributor guide

Research direction
Investigate the scroll event handler in the infinite scroll directive to understand how data is replaced when scrolling upwards, focusing on the step size and smoothness.
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.
2
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
AngularJSGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60