Unable to set initial value to DropdownButtonFieldForm [1.17.0] #56716

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1. HansMuller

   added

   p: material_uimaterial_ui package in flutter/packagesmaterial_ui package in flutter/packages

   frameworkflutter/packages/flutter repository. See also f: labels.flutter/packages/flutter repository. See also f: labels.

   c: regressionIt was better in the past than it is nowIt was better in the past than it is now

   on May 8, 2020
2. HansMuller

   assigned

   shihaohong

   on May 11, 2020
3. shihaohong commented on May 11, 2020

   

   shihaohong

   on May 11, 2020

   Contributor

   More actions

   Hi @arnold-parge, could you please share a minimal reproducible sample? I tried the following simple app and it seems to work just fine on the master and stable branches:

   import 'package:flutter/material.dart';
   
   void main() {
     runApp(MyApp());
   }
   
   class MyApp extends StatelessWidget {
     @override
     Widget build(BuildContext context) {
       return MaterialApp(
         title: 'Flutter Demo',
         theme: ThemeData(
           primarySwatch: Colors.blue,
           visualDensity: VisualDensity.adaptivePlatformDensity,
         ),
         home: MyHomePage(title: 'Test DropdownButtonFormField'),
       );
     }
   }
   
   class MyHomePage extends StatefulWidget {
     MyHomePage({Key key, this.title}) : super(key: key);
   
     final String title;
   
     @override
     _MyHomePageState createState() => _MyHomePageState();
   }
   
   class _MyHomePageState extends State<MyHomePage> {
     String dropdownValue = 'two';
   
     @override
     Widget build(BuildContext context) {
       return Scaffold(
         appBar: AppBar(
           title: Text(widget.title),
         ),
         body: Center(
           child: Column(
             mainAxisAlignment: MainAxisAlignment.center,
             children: <Widget>[
               Form(
                 child: DropdownButtonFormField<String>(
                   value: dropdownValue,
                   onChanged: (String newValue) {
                     setState(() {dropdownValue = newValue;});
                   },
                   items: [
                     DropdownMenuItem(
                       child: Text('option one'),
                       value: 'one',
                     ),
                     DropdownMenuItem(
                       child: Text('option two'),
                       value: 'two',
                     ),
                     DropdownMenuItem(
                       child: Text('option three'),
                       value: 'three',
                     ),
                   ],
                 ),
               ),
             ],
           ),
         ),
       );
     }
   }

   👍React with 👍1Reacted by Agyingi Jan Royal
4. shihaohong

   added

   waiting for tree to go green

   waiting for responseThe Flutter team cannot make further progress on this issue until the original reporter respondsThe Flutter team cannot make further progress on this issue until the original reporter responds

   and removed

   waiting for tree to go green

   on May 11, 2020
5. shihaohong

   closed this as completedin #57037on May 13, 2020
6. github-actions commented on Aug 21, 2021

   

   github-actionsbot

   on Aug 21, 2021

   More actions

   This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.
7. github-actions

   locked as resolved and limited conversation to collaborators on Aug 21, 2021