Add a Node Virtualization feature

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Unplanned

Last Updated: 01 Feb 2024 13:22 by ADMIN

Christian

Created on: 08 Jul 2021 07:20

Category: TreeView

Type: Feature Request

Add a Node Virtualization feature

I would like to be able to optimize the rendering of the TreeView component with a feature similar to the Row Virtualization in the Grid.

14 comments

ADMIN

Nadezhda Tacheva

Posted on: 20 Dec 2023 14:19

Hi Chris,

This enhancement is included in the 2024 roadmap. Once we schedule it for a specific release, we will also decorate the current item with a label indicating the release number it will be delivered in.

Regards,
Nadezhda Tacheva
Progress Telerik

Stay tuned by visiting our public roadmap and feedback portal pages! Or perhaps, if you are new to our Telerik family, check out our getting started resources!

Chris

Posted on: 13 Dec 2023 17:21

AVEVA Licensee here. We've been asking for this support since January 2022. We had to release without it recently and will need to evaluate other control vendors going forward as you are not meeting the needs of Enterprise customers.

Hans

Posted on: 28 Nov 2023 09:45

Yes we also need this urgently.

Our "treeview" needs to support viewing over 10M objects, where sometimes a single branch may have up to 10K children. These are loaded through an API, so it is a big no-no to query for all 10K of these objects at once as the end user will not be able to display them all on a screen anyway.

(message also posted at the other thread)

Nicholas

Posted on: 17 Nov 2023 14:44

Virtualizing would be a help. However, I see components are being used for every tree node and this has a huge effect on performance. If you re-factor to remove the need for the component and use RenderFragments instead the performance will be exponentially better. Microsoft points this out in their documentation.

See: https://learn.microsoft.com/en-us/aspnet/core/blazor/performance?view=aspnetcore-8.0

ADMIN

Nadezhda Tacheva

Posted on: 20 Feb 2023 14:38

Hi Stefan,

I've revised the ticket you shared and synced with my colleagues on the matter.

They have informed me that the AnimationContainers have been optimized as discussed in the private thread. This change is expected to be released with the upcoming 4.1.0.

As a result, the performance should be improved even without the node virtualization feature. However, virtualization will still be needed for better handling of large amounts of items.

Regards,
Nadezhda Tacheva
Progress Telerik

Learn about the important changes coming in UI for Blazor 4.0 in January 2023!

Stefan

Posted on: 13 Feb 2023 15:44

Hello,
a solution to the problem is urgent. Our customers (including several DAX corporations) are extremely dissatisfied. They need a solution. See also:
https://www.telerik.com/account/support-center/view-ticket/1557520

Who is the responsible decision maker to ensure that the problem is treated with priority?

Best regards
Stefan Aust

ADMIN

Nadezhda Tacheva

Posted on: 13 Dec 2022 15:49

Hi Christian,

The status of the item is indeed "Unplanned" - this indicates the request is valid and will be worked on in a future version of the product but it is not yet scheduled for implementation. Unfortunately, at this stage, I am not able to provide a firm estimate on when it will be included in the product. The best way to follow its progress is to subscribe for the item.

For the time being, an option that I can suggest for optimizing the performance of the TreeView is to load the child items on demand only when the user expands the parent node. You may check the Lazy Loading demo to explore the configuration.

Take your time to revise it and please let me know if any questions appear.

Regards,
Nadezhda Tacheva
Progress Telerik

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Christian

Posted on: 07 Dec 2022 08:01

Hi,

this is unplanned now for over 1 year - is there any chance this ever gets implemented? I think this is a crucial one (same goes for TreeList row virtualization) - as there is no workaround possible (e.g. when the user expands a lot of nodes).

Otherwise, we'll have to look for an alternative.

Best Regards,

Christian

ADMIN

Nadezhda Tacheva

Posted on: 22 Sep 2021 07:48

Hi Christian,

Thank you for your feedback!

We do have an opened feature request for row virtualization in the TreeList that you may find here - Support for row virtualization. I see you already voted for it and you might also follow it to keep in track with its progress.

Regards,
Nadezhda Tacheva
Progress Telerik

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Christian

Posted on: 20 Sep 2021 15:13

Hi,

I would just like to add: this would also be a useful feature for the TreeList (the row virtualization is missing - column virtualization is already implemented) component as well, which shouldn't be much more work after the TreeView virtualization is implemented.

I think this would also keep your component-features more "consistent"

Best Regards,

Christian

ADMIN

Nadezhda Tacheva

Posted on: 20 Sep 2021 15:06

Hi Roland,

Indeed, once this feature is available you can use it to improve the overall performance of the TreeList and not only initially. The best way to keep in track with its progress is to follow it.

Once we know which release will contain its implementation, we will update its status in the feedback portal and you will be notified via email accordingly.

Regards,
Nadezhda Tacheva
Progress Telerik

Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher.

n/a

Posted on: 14 Sep 2021 01:29

I have ticket 1531271 open on this as well. We've had to use some delicate logic to dynamically load every tree branch as it first expands. This can improve performance initially, but as our customers expand more branches, hundreds of nodes can accumulate and performance degrades significantly. We are very keen for this feature.

Nasoloniaina

Posted on: 09 Sep 2021 15:18

It will be very helpful

ALAINE

Posted on: 09 Sep 2021 15:18

we need this feature as soon as possible, please we need to work!!!!