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I've combined a standard, local datasource datatable that has multiple sortable columns with the expandable row function. The resulting datatable object allows the rows to be expanded correctly, however there are two issues:

1. clicking on the column headers does sort the table correctly in ascending order, but clicking once more has no effect, i.e. it does not reverse sort the same column
2. the sort highlighting is not applied when sorting a column nor does the sorted icon appear in the column heading.

I've experimented by removing parts of the additional code that provides the row expand functions and it seems to be the initAttributes function that is somehow causing the problems.
Removing the override function fixes the sorting issues [but of course removes the expandable row functionality] and leaving only the superclass call prevents both the row expansion and the sorting/highlighting from working.



Has anyone seen this problem or have any suggestions on how to resolve it?

Thank you. That looks to be exactly the problem I've been facing. I'll give the suggested changes a try and let you know if I run into any problems.