TreeGrid Virtualization Problems

[Ralf]

Hi,

we have problems with the virtualization the SfTreeGrid for server-side Blazor (20.2.0.39):

1. Loosing categories after collapsing/expanding (see SfTreeGridVirtualization1.gif and example SfTreeGridVirtualizationExample_20.2.0.39.zip)
2. Sometimes no data is shown after scrolling (see SfTreeGridVirtualization2.gif and set parentCount=30 in example SfTreeGridVirtualizationExample_20.2.0.39.zip)
3. IdMapping/ParentIdMapping doesn't work with properties of type String (no example for this). If using strings for ids, we sometimes get exceptions when expanding categories and scrolling to the end of the list. But if we use properties of type Guid, we do not get these errors. Shouldn't that work for strings, too?
   1. System.ArgumentOutOfRangeException: 'Index was out of range. Must be non-negative and less than the size of the collection.'
   2.  System.Collections.Generic.KeyNotFoundException: The specified key 'index' does not exist in the ExpandoObject. 
      

Attachment: SfTreeGridBugExamples_20.2.0.39_c54195bb.zip

[Pon Selva Jeganathan]

Hi Ralf,

Thanks for contacting syncfusion forum.

Query1: Loosing categories after collapsing/expanding 

Query2: Sometimes no data is shown after scrolling 

We are working on this query with high priority. And we need time to validate the issue and will update you with further details by 26^th July 2022.  Until then we value your patience.

Query3: IdMapping/ParentIdMapping doesn't work with properties of type String

We checked your query by preparing a sample using IdMapping/ParentIdMapping properties with the type of String, but we could not reproduce the issue at our end.

Please refer to the below sample:

https://www.syncfusion.com/downloads/support/directtrac/general/ze/SfTreeGridVirtualizationExample_modify339602534

Please refer to the below video demo:

https://www.syncfusion.com/downloads/support/directtrac/general/ze/demo_(2)-1455993308

After following the above solution still faced issue, share us the following details.

1. Share the complete tree grid code example.
2. Share the video demo/ screenshot of the issue.
3. Share us the reproducible sample or reproduce the issue in the above sample.

 The provided information will be helpful to provide you response as early as possible. 

Regards,
Pon selva

[Pon Selva Jeganathan]

Hi Ralf,

Sorry for the inconvenience caused.

Query1: Losing categories after collapsing/expanding 

Query2: Sometimes no data is shown after scrolling 

We are able to reproduce the reported issue at our end. We are working on this query with high priority. And We need some additional time to validate the issue to confirm whether the reported issue is a bug or not. We will update you with further details on or before 28^th July 2022.  Until then we value your patience.

Regards,
Pon selva

[Pon Selva Jeganathan]

Hi Ralf,

Thanks for your patience.

Query1: Loosing categories after collapsing/expanding 

Query2: Sometimes no data is shown after scrolling 

On further validation, we have considered the reported issue (“Issue in virtualization with expand/collapse operation ”) as a bug. Thank you for taking the time to report this issue and helping us improve our product. At Syncfusion, we are committed to fixing all validated defects (subject to technological feasibility and Product Development Life Cycle) and will include the fix in our upcoming patch release which is expected to be rolled out on 17^th August 2022. Until then we appreciate your patience.

You can now track the current status of your request, review the proposed resolution timeline, and contact us for any further inquiries through this link. 

https://www.syncfusion.com/feedback/36612/issue-in-virtualization-with-expand-collapse-operation

Note: To view the above feedback, kindly login into your account. 

Regards,  

Pon selva   

[Pon Selva Jeganathan]

Hi Ralf,

Sorry for the inconvenience caused.

Due to unforeseen circumstances, we are unable to include the bug  (“Issue in virtualization with expand/collapse operation”) fix as promised in the weekly patch release. We would include the bug fix in the upcoming weekly patch release, which is scheduled to be rolled out on 24^th August 2022. Until then we value your patience.

You can now track the current status of your request, review the proposed resolution timeline, and contact us for any further inquiries through this link. 

https://www.syncfusion.com/feedback/36612/issue-in-virtualization-with-expand-collapse-operation

Note: To view the above feedback, kindly login into your account

 Kindly get back to us for further assistance.

Disclaimer: Inclusion of this solution in the weekly release may change due to other factors including but not limited to QA checks and works reprioritization.

Regards,  

Pon selva   

[Pon Selva Jeganathan]

Hi Ralf,

Sorry for the inconvenience.

We are working on this query with high priority. We will include the fix in the upcoming weekly patch release, which is scheduled to be rolled out on 21^st  September 2022.

Until then we appreciate your patience.

Regards,

Pon selva

[Pon Selva Jeganathan]

Hi Ralf,

We deeply regret for the inconvenience caused.

We have internally fixed the below issue “Issue in virtualization with expand/collapse operation”. The fix for these issues has not yet been released. It will be included in our first weekly patch release after the Volume 3 release.

And We have generated Custom Patch by including the fix.

Please refer to the below custom patch: https://www.syncfusion.com/downloads/support/directtrac/general/ze/Nuget1596323456

Until then we value your patience.

Regards, 

Pon selva  

[Pon Selva Jeganathan]

Hi Ralf,

We appreciate your patience.   

We are glad to announce that fix for the issue “Issue in virtualization with expand/collapse operation”
has been rolled out in our patch release. We request you to update to our latest version " 20.3.49" to resolve the issue. 

Kindly get back to us for further assistance.

Regards,

Pon selva

[Ralf]

Hi Pon Selva,

thanks for your news. I've updated my example to 20.3.0.49. The expand/collapse operation works a bit betten than before, but both reported bugs (Query1: Loosing categories after collapsing/expanding  and Query2: Sometimes no data is shown after scrolling) still exist.

Please use my originally posted bug example from above, update to 20.3.0.49 and do the same as in my attached videos.

Regards,

Ralf

Attachment: SfTreeGrid_videos_20.3.49_4dd0f8e5.7z

[Pon Selva Jeganathan]

Hi Ralf,

Thanks for the update.

We are working on this query with high priority. And we need time validate the issue and will update you with further details by 19^th October 2022.  Until then we value your patience.

Regards,
Pon selva

[Pon Selva Jeganathan]

Hi Ralf

We have created a new ticket under your account. Please follow that for further updates.

Kindly get back to us for further assistance.

Regards,

Pon selva