RequiredValidator class

Inheritance

• Object
• FieldValidator<String?>
• TextFieldValidator
• RequiredValidator

Constructors

RequiredValidator({required String errorText})

Properties

errorText → String

the errorText to display when the validation fails

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

ignoreEmptyValues → bool

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

call(String? value) → String?

call is a special function that makes a class callable returns null if the input is valid otherwise it returns the provided error errorText

override

hasMatch(String pattern, String input, {bool caseSensitive = true}) → bool

helper function to check if an input matches a given pattern

inherited

isValid(String? value) → bool

checks the input against the given conditions

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited