FileRule class

A validation rule that checks if the given value is a file.

This rule is used to ensure that the value being validated is an instance of MultipartFile. If the value is not a file, the validation will fail.

Inheritance

Constructors

FileRule()

Properties

contextValues → Map<String, dynamic>?
Provide the values from the data to the rule, null if none
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
name → String
The name of the validation rule.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

message(dynamic value, [List<String>? options]) → String
The error message to be displayed if validation fails.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited
validate(dynamic value, [List<String>? options]) → bool
Validates whether the given value is a file.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited