FdcGridLookup<T> typedef
FdcGridLookup<T> =
Future<FdcLookupResult?> Function(FdcLookupContext context)
Asynchronous lookup callback for a grid column.
Return an FdcLookupResult to apply its field values. Return null to
cancel the lookup without changing the dataset.
Implementation
typedef FdcGridLookup<T> =
Future<FdcLookupResult?> Function(FdcLookupContext context);