MaxLengthRule

public class MaxLengthRule: Rule

MaxLengthRule is a subclass of Rule that defines how maximum character length is validated.

  • Declaration

    Swift

    public init(){}

    Return Value

    An initialized MaxLengthRule object, or nil if an object could not be created for some reason that would not result in an exception.

  • Initializes a MaxLengthRule object that is to validate the length of the text of a text field.

    Declaration

    Swift

    public init(length: Int, message : String = "Must be at most %ld characters long")

    Parameters

    length

    Maximum character length.
    message

    String of error message.

    Return Value

    An initialized object, or nil if an object could not be created for some reason that would not result in an exception.

  • Used to validate a text field.

    Declaration

    Swift

    public func validate(value: String) -> Bool

    Parameters

    value

    String to checked for validation.

    Return Value

    A boolean value. True if validation is successful; False if validation fails.

  • Displays an error message if a text field fails validation.

    Declaration

    Swift

    public func errorMessage() -> String

    Return Value

    String of error message.