IgxHierarchicalGrid - DOM elements remain in memory after destroy.

[MayaKirova]

Description

Detached Elements remain in memory after destroying IgxHierarchicalGrid, where the RowIsland had declarative columns and some rows were expanded.

If row island has no columns (autoGenerate=true for example), then there's no leak.

Framework

Angular

Angular Version

22.0.1

Ignite UI for Angular Version

22.0.0

Component / Area

Hierarchical Grid

Browser

Chrome

Operating System

No response

Command Not Working

Steps to Reproduce

1. Run sample:

hgrid.zip

2. Destroy grid via button
3. Collect Garbage and take a memory snapshot
4. Create grid via button
5. Expand a row
6. Destroy grid via button
7. Collect Garbage and take another memory snapshot
8. Compare the two

Actual Result

Hierarchical grid elements remain in memory:

Expected Result

No hierarchical grid elements remain in memory.

Reproduction URL

No response

Attachments

No response