TreeView - Large dataset selection issue

[Nassefferjeni]

I'm trying to work with a large treeview dataset (>6000 items) and when selecting just an element the browser seems to freeze for a while before triggering the actual selection.

I tried using a spinner before triggering the selection but it doesn't seem to be working, it gets blocked either way then the spinner starts.

I even added a timeout before starting the selection so I can make sure I triggered the loading but it's still blocked

@simonssspirit I saw your discussion but the thing is even with the production mode it is still very slow ( FYI I am using React )
One more thing, the server filtering is not possible in my case.

Any suggestions?

[simonssspirit]

@Nassefferjeni we will check if we can optimize the selection process by memorizing the already rendered items and only updating the selected ones.

[simonssspirit]

reported again in 1508381