Overflowed By with DropdownButton in Flutter

<strong>Background:</strong> Hello. I have just started learning Flutter and I have run into an Overflowed By error when trying to create a dropdown menu in the top le...

Value property doesnt update for dropdownfield when I do setState in flutter

I am updating the dropdown table dynamically from an API. When I select an hour, the corresponding subjects are retrieved from the API. Let's say I am switchin...

How to reduce the height of the DropDownButtonFormField so that the text inside it does not go out of the middle in flutter?

When I set a height for my container that is the parent of DropDownButtonFormField, I have no problem when the height is 55, but when the height is less (42) than a ce...

How to change dropdown default text color, when it is disabled?

When the dropdown is disabled it has this default black text color, which I want to change. There is an option to change the icon color but no option for text color.<b...

Flutter dropdown button selected value position

How can I make the selected dropdown item appear first in the list when its opened? I'm using GetX for state, is this the proper way of doing it anyway? ...

Flutter/Dart: Handling Dropdown changes within a ListView.builder, Dropdown button not updating,

I'm guessing I'm missing something simple but I've been at this for days trying every possible solution. How do we handle dropdown selection in a listview.builder? Is...

How to bind an enum to DropdownButton in Flutter?

Is it possible to bind a dropdownbutton to an enum? I have created an enum and trying to bind it to a dropdownbutton, see code below. Thanks for any help on this....

How can I remove/disable an item in a DropdownButtons item list if its selected on a second one (and vice-versa)?

I'm trying to make a pair of dropdown buttons that take their items from the same list, and selecting a value in one disables it in the other one, and vice versa (much...

DropdownButton - Set value: with value NOT contained by The list of items the user can select - Flutter

I have this DropdownButton <a href="https://i.stack.imgur.com/mTcQe.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mTcQe.png" alt="enter ima...

Selecting from a dropdown list and updating the same list the same time in flutter

How do I ensure that a user does not select the same security question twice by hiding the initially selected question from appearing in the second dropdown button and...

How to resolve flutter dropdownButtonFormField dynamic selection checking for dropdownButtons value

I am trying to ask the user to select the type of item in the first dropdown and then select from its corresponding available colours in the second dropdown. However,...

Flutter: How to use the selected DropDownButton item to display a chart?

everyone. I'm trying to get to show a bar chart on the screen when the user selects a certain item from the Dropdown. I have a different file for data that is to be di...

How can I populate dropdown using sqflite?

I can not populate DropDown from database. <pre><code> Future&lt;List&lt;Map&lt;String, dynamic&gt;&gt;&gt; getProjectsMapList() async { Database db = awai...

How to create submenu dropdown in flutter

I am working on sidebar in flutter, I need to add a submenu to the alreay existing menu Items. I have two files, menu_items.dart and sidebar.dart. Menu_Items co...

Why do I have, and how to prevent, duplicate items in DropDownButton items?

I'm creating a simple interface for user to select a client from a dropdown. However I end up with duplications of values in the menu items. How do I prevent this? (an...