I checked if we could use any hook (as
nestedRows does not have hook API) and found out that
beforeOnCellMouseDown is the only hook that is called when we click the expand/collapse icon in the row header.
So I’ve used it to check if the clicked element is the collapse/expand button
arguments.classList == ‘ht_nestingParent’
Further in the code, I wanted to use
updateSettings method to update the row of a merged area.
updateSettings method shows the collapsed section. To overcome this limitation I called the collapse method again
However, the issue is that the parent does not want to expand.
Here is my latest progress https://jsfiddle.net/sj7pf38b/7/ I wasn’t able to fix the auto-collapsing effect but I think that this can be the start of a good workaround so I wanted to share it with you.