DropDownParser.fromJson constructor
DropDownParser.fromJson(])
Implementation
DropDownParser.fromJson(Map<String, dynamic> json, this.onValueChanged,
this.isBeforeHeader, this.index,
[this.dateBuilder])
: name = json['name'],
description = json['description'],
id = json['id'],
time = json['time'],
values = json['values'].cast<String>(),
chosenValue = json['chosen_value'];