helperText property

String? helperText

Text that provides context about the DropdownMenu's value, such as how the value will be used.

If non-null, the text is displayed below the input field, in the same location as errorText. If a non-null errorText value is specified then the helper text is not shown.

Defaults to null;

See also:

• InputDecoration.helperText, which is the text that provides context about the InputDecorator.child's value.

Implementation

final String? helperText;