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Questions - dropdownbutton

Flutter Dropdownbutton state is not updated - Everything else works fine

I have created a stateful customer information form and the there are two widgets that use the state - two list tiles with radio buttons and a drop down button. The list tiles respond to the code and ...
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Akila Ariyathilaka

flutter

widget

stateful

dropdownbutton

Votes: 0

Answers: 2

Latest Answer

This might help you out: DropdownButton( hint: Text('ඔබට ළඟම බැංකු ශාඛාව මෙතනින් තෝරන්න.'), icon: Icon(Icons.arrow_downward), iconSize: 24, value: _branch, elevation: 16, style: TextStyle...
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Marco

DropdownButtonFormField Reset after submit a form in Flutter

How to reset a DropdownButtonFormField value to default value or reset DropdownButtonFormField after submitting a form.
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Nifal Mohamed

flutter

forms

submit

reset

dropdownbutton

Votes: 0

Answers: 2

Latest Answer

you can do so using a GlobalKey like: GlobalKey<FormFieldState> newKey = GlobalKey<FormFieldState>(); and assign it to your DropdownButtonFormField like: DropdownButtonFormField( ...
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tareq albeesh

How to send DropDownButton values like TextEditingController for TextFormField in Flutter

I'm trying to send the DropDownButton selected values to EmailJS. I'm using TextEditingController for TextFormField and it's working fine and the values taken by EmailJS. How I can send the DropDownBu...
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Nifal Mohamed

flutter

controller

getter-setter

dropdownbutton

texteditingcontroller

Votes: 0

Answers: 1

Latest Answer

I tried this way and It's sending data now. I pass the value of the drop box with this way in onpressed. service: dropdownValue.toString(), and call the class variable. String? dropdownValue; final ...
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Nifal Mohamed

I have 2 dropdownbuttons and i cant make one depend on the other one

I have 2 dropdown buttons, which one have a list with an 'id' and a 'name' and i need to make like when i choose a option from one dropdown button only appear a certain number of options in the second...
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Filipe Martins

android

flutter

dart

drop-down-menu

dropdownbutton

Votes: 0

Answers: 1

Latest Answer

In order to filter the dropdown items, you can use the where method of Iterable! https://api.flutter.dev/flutter/dart-core/Iterable/where.html For example you can implement a where for your ModuloResu...
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CLucera

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