Paging not working in TreeGrid

Question

If we use paging in TreeGrid, and try to collapse a certain hierarchy, it throws an error.

This can be easily tested with your own example in "https://ej2.syncfusion.com/react/demos/#/material/treegrid/paging"

If you go and ran it on StackBlitz and try to collapse it gives the following error:

Uncaught TypeError: Cannot read properties of undefined (reading 'requestType')

at Observer.eval (render.js?3632:414)

at Observer.notify (observer.js?811a:102)

at Grid.Base.trigger (base.js?3923:181)

at Render.dataManagerSuccess (render.js?3632:363)

at Page.collapseExpandPagedchilds (page.js?3f59:108)

at Observer.notify (observer.js?811a:99)

at TreeGridComponent.Component.notify (component.js?c155:249)

at TreeGridComponent.TreeGrid.expandCollapse (treegrid.js?73ba:2545)

at Observer.eval (treegrid.js?73ba:2371)

at Observer.notify (observer.js?811a:84)

at TreeGridComponent.ComponentBase.trigger (component-base.js?c9da:223)

at TreeGridComponent.TreeGrid.collapseRow (treegrid.js?73ba:2369)

at TreeGridComponent.TreeGrid.expandCollapseRequest (treegrid.js?73ba:2308)

at TreeGridComponent.TreeGrid.mouseClickHandler (treegrid.js?73ba:1625)

Can you please fix it?

Thank you.

Jagadesh Ram Raajkumar · Answer

Hi Marco, 
Greetings from Syncfusion Support. 

We can reproduce the issue and we are currently validating the same, we will provide details within two business days. Until then we appreciate your patience. 
Regards,Jagadesh Ram

Jagadesh Ram Raajkumar · Answer

Hi Marco, 

Thanks for your patience.Upon further validation, we found that his is a known issue. We fixed this issue internally. This fix is included in our volume 3 main release which is expected to be rolled out on 24th September 2021.    
 Until then we value your patience. 
Regards,Jagadesh Ram

Jagadesh Ram Raajkumar · Answer

Hi Marco,  
 
We are glad to announce that the fix for the issue “Paging not working in TreeGrid” has been rolled out in Essential Studio 2021 Volume 3 release v19.3.0.43 and is available for download under the following link.
 
https://www.syncfusion.com/forums/169291/essential-studio-2021-volume-3-main-release-v19-3-0-43-is-available-for-download 
 
We thank you for your support and appreciate your patience in waiting for this release. Please get in touch with us if you would require any further assistance. 

Regards,Jagadesh Ram