Triggered before requests such as describeLayout are sent.

• This stage is relatively early: object-related data in dataGetter is not yet available, but page input parameters can be accessed

Parameters

None at the moment

Return Value

Parameter	Description	Type
promiseAllWithFetch	Async tasks executed concurrently with the describeLayout request	()=>Promise
handleDescribeLayoutPostParams	Processes the request parameters of describeLayout	()=>Void

Notes

• Calling dataUpdater to update master/detail data in this event is not suitable.