DropdownField<T>  constructor 
      const
      DropdownField<T> ({ 
    
    
- Key? key,
- String? label,
- required List<T> items,
- T? value,
- ValueChanged<T?> ? onChanged,
- required String itemLabel(- T
 
Implementation
const DropdownField({
  super.key,
  this.label,
  required this.items,
  this.value,
  this.onChanged,
  required this.itemLabel,
});