ColumnMenuBuilder typedef
ColumnMenuBuilder =
Future<void> Function({required ColumnMenuState columnState, required BuildContext context, required GridController controller, required void onAction(ColumnMenuAction action)})
Signature for a custom column menu builder.
Receives the build context, controller, column state, and a callback
to apply an action. The builder is responsible for showing a popup/menu
and calling onAction with the user's selection.
Implementation
typedef ColumnMenuBuilder =
Future<void> Function({
required BuildContext context,
required GridController controller,
required ColumnMenuState columnState,
required void Function(ColumnMenuAction action) onAction,
});