Collapsing Grouped Results in Grid Issue

[Charles]

Issue: If I collapse one of the statuses and then I sort by status, it expands the one I collapsed and then collapses the one I didn’t collapse

Please see this for reference: https://gfycat.com/silentsecondaryhadrosaurus (I used the example found here: https://www.telerik.com/kendo-angular-ui/components/grid/grouping)

With that, I would just like to know if this is a limitation of Telerik grouping functionality.

Thanks in advance!

[Dimiter Topalov]

Hi Charles,

Indeed, the observed behavior is a limitation of the Grid grouping functionality - it stores the expanded/collapsed state by row index, and when the order of the groups is reversed, the items are expanded/collapsed by their row index rather than the group they belong to. We are aware of this shortcoming, and will be working on an enhancement that will allow storing the collapsed/expanded groups in a more reliable manner, similar to the recent enhancement we introduced to our Master-detail functionality:

https://www.telerik.com/kendo-angular-ui/components/grid/master-detail/expanded-state/

Currently I cannot commit to any specific timeline, but until the described enhancement is ready, the only available workaround seems to store the expanded/collapsed state of the groups using the groupCollapse and groupExpand event handlers, and expand/collapse the needed groups programmatically via the Grid collapseGroup and expandGroup methods after changing their order. The groupChange event data contains information about the direction in the respective GroupDescriptors, allowing for the custom logic to collapse and expand the new groups by their index.

I hope this helps.

Regards,
Dimiter Topalov
Progress Telerik

[Charles]

Thank you. This was helpful.