How to Remove Underline From DropDownButtonForm Field In Flutter ?

How to Remove Underline From DropDownButtonForm Field In Flutter ?

DropDown List is used only we have to select only one item from the list of available items so in this article we will go through How To Remove Underline From DropDownButtonForm Field In Flutter

So let’s Dive into the same.

Take a look at the below image to understand it very clearly.

How to Remove Underline From DropDownButton Form Field In Flutter?

Follow Steps like below:

Change Decoration: InputDecoration to decoration: InputDecoration.collapsed

body: SizedBox(
          width: 100.0,
          child: DropdownButtonFormField<int>(
            decoration: InputDecoration.collapsed(hintText: ''),
            value: 2,
            ...

User can also use enabledBorder: UnderlineInputBorder

DropdownButtonFormField<int>(
          decoration: InputDecoration(
              enabledBorder: UnderlineInputBorder(
                  borderSide: BorderSide(color: Colors.white))),
          value: 2,
          items: <DropdownMenuItem<int>>[
          ....

So The User can also wrap a DropDownButton Inside DropDownButtonHideUnderline like below:

new DropdownButtonHideUnderline(
 child: DropdownButton()
)

Setting the underline property to SizedBox() makes it invisible too:

DropdownButton(
  underline: SizedBox(),

...
)

Users can also set Input. Border to none using below code snippet.

DropdownButtonFormField<int>(
  decoration: InputDecoration(
    enabledBorder: InputBorder.none,
    ...
  ),
  ...
)

Conclusion:

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So in this article, We Have Been through How to Remove Underline From DropDownButtonForm Field In Flutter.

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