fix(carousel): improve slide fallback logic and trigger change detection when collection is changing#17448
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mddragnev wants to merge 3 commits into
Open
fix(carousel): improve slide fallback logic and trigger change detection when collection is changing#17448mddragnev wants to merge 3 commits into
mddragnev wants to merge 3 commits into
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Pull request overview
Addresses the zoneless change-detection scenario for IgxCarouselComponent when slides are changed at runtime (issue #17439), ensuring slide selection and rendering update without requiring user interaction (e.g., hover) to trigger refresh.
Changes:
- Updates carousel slide-differ logic to avoid overwriting
currentItemwhen a better active slide has already been determined during a collection refresh. - Marks the carousel view for check after slide-selection updates scheduled via
requestAnimationFrame, improving zoneless refresh behavior. - Adds a new zoneless-focused test suite covering dynamic slide replacement behavior.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| projects/igniteui-angular/carousel/src/carousel/carousel.component.ts | Adjusts slide removal fallback logic and explicitly markForCheck() after selection updates to support zoneless refresh. |
| projects/igniteui-angular/carousel/src/carousel/carousel.component.spec.ts | Adds zoneless tests for dynamic slide replacement and related activation behavior. |
mddragnev
changed the title
…pdate slide activation test description
rkaraivanov
approved these changes
Jul 22, 2026
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Closes #17439
Description
Motivation / Context
Type of Change (check all that apply):
Component(s) / Area(s) Affected:
How Has This Been Tested?
Test Configuration:
Screenshots / Recordings
Checklist:
feature/README.MDupdates for the feature docsREADME.MDCHANGELOG.MDupdates for newly added functionalityng updatemigrations for the breaking changes (migrations guidelines)