In my requirement, at UI level we have a table layout with 11 columns need to auto populate 3 fields with on change of 1 field.-Attached (AutoPopulate.png)

For Autopopulate we have logic to fetch from Datatype using activity call for onchange event.

Currently table is configured with "Click Row to Edit" option for Inline edit mode with Inline Row editing option

On launch of section we have to populate table with 2 rows,without user click on add item(Readonly.png)

Here user has to double click on rows to enter the values,once user enters first field the rest 3 fields which are to be autopopulated is not happening since tab out/click is making row readonly.

Require a way to auto populate fields even though rows become readonly.

I tried below ways,

.On first field entry,tried to refresh row with on change action

.Say user enter first field and uses "tab" key to navigate to next field then autopopulated is happening,but unsure that user will go with tab key for navigation.