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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.
Postponed
Votes
0
Found in
2022.1
2022.1.0b6
2022.2
Issue ID
1402127
Regression
No
Editor freezes when using "MultiColumnTreeView" with large numbers of items
How to reproduce:
1. Open project "Issue.zip"
2. Go to Menu > Window > MultiColumnTreeView Window
3. In the "MultiColumnTreeView" window press the "Set Tree View's Root Items"
4. Press the triangle to expand the list near -1
Expected result: The Editor is not freezing
Actual result: The Editor freezes
Reproducible with: 2022.1.0a16, 2022.1.0b10, 2022.2.0a7
Could not test with: 2019.4.36f1, 2020.3.30f1, 2021.2.14f1, 2022.1.0a15 (No "MultiColumnTreeView")
Note: In 2022.2.0a7 after the 3rd step the Editor was crashing
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Resolution Note (2022.1.X):
This is a current limitation of the implementation. While the UI that is produced by the MC TreeView is virtualized, the underlying data layer also needs to be virtualized. There are other improvements that could improve the overall performance, all of which will be added to our backlog.