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fix(elements): strip Blazor externalObject from expression tree events - master#17251

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iminchev/blazor-expression-tree-external-object
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fix(elements): strip Blazor externalObject from expression tree events - master#17251
IMinchev64 wants to merge 1 commit intomasterfrom
iminchev/blazor-expression-tree-external-object

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@IMinchev64 IMinchev64 commented Apr 29, 2026

Closes https://github.com/Infragistics-Developer-Tools/dev-tools/issues/3208

Description

Motivation / Context

Type of Change (check all that apply):

  • Bug fix
  • New functionality
  • Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • Refactoring (no functional changes)
  • Documentation
  • Demos
  • CI/CD
  • Tests
  • Changelog
  • Skills/Agents

Component(s) / Area(s) Affected:

How Has This Been Tested?

  • Unit tests
  • Manual testing
  • Automated e2e tests

Test Configuration:

  • Angular version:
  • Browser(s):
  • OS:

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Checklist:

  • All relevant tags have been applied to this PR
  • This PR includes unit tests covering all the new code (test guidelines)
  • This PR includes API docs for newly added methods/properties (api docs guidelines)
  • This PR includes feature/README.MD updates for the feature docs
  • This PR includes general feature table updates in the root README.MD
  • This PR includes CHANGELOG.MD updates for newly added functionality
  • This PR contains breaking changes
  • This PR includes ng update migrations for the breaking changes (migrations guidelines)
  • This PR includes behavioral changes and the feature specification has been updated with them
  • Accessibility (ARIA, keyboard navigation, focus management) has been verified

@IMinchev64 IMinchev64 requested a review from mddragnev April 29, 2026 14:30
Copilot AI review requested due to automatic review settings April 29, 2026 14:30
@IMinchev64 IMinchev64 added ❌ status: awaiting-test PRs awaiting manual verification 💠 grid: elements labels Apr 29, 2026
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Pull request overview

This PR addresses a Blazor interoperability issue where externalObject injected into filtering/expression trees breaks serialization/comparison logic when those trees are used as event payloads.

Changes:

  • Ignores externalObject during Query Builder tree comparison to prevent unnecessary UI re-creation.
  • Strips externalObject from expression/filtering tree payloads for specific Elements output events.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File Description
projects/igniteui-angular/query-builder/src/query-builder/query-builder-tree.component.ts Updates the JSON stringify replacer ignore-list to skip externalObject during expression group comparisons.
projects/igniteui-angular-elements/src/app/custom-strategy.ts Adds handling for expression-tree-related outputs to remove externalObject from emitted event args.

Comment thread projects/igniteui-angular-elements/src/app/custom-strategy.ts
@IMinchev64 IMinchev64 changed the title fix(elements): strip Blazor externalObject from expression tree events fix(elements): strip Blazor externalObject from expression tree events - master Apr 29, 2026
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