The datatable does not display a check mark when a row is selected, although the backend events are being triggered as shown in the Data JSON. The child FlexCard is configured with a datatable that includes an event listener (selectrow). This pubsub event is captured by the parent FlexCard, which uses a set-value action to update its data accordingly.
This behavior can be observed in the configuration shown below.
In the child FlexCard, a row can be selected, and the selection is correctly registered in the backend within the datasource object.
This behavior is expected.
The alternate approach would be:
Set Values - Documentation to configure the workaround #2
User can setvalue to a {Session.someValue} and then pass that Session value down to the childcard using Parent attributes.
Ref. Flexcard Context Variables
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