EnterpriseDS Documentation

Structure DSRequired​Text​Validation​Rule 

public struct DSRequiredTextValidationRule: DSValidationRule

A validation rule for requiring that text exists and is not an empty string. This is the only validation rule that enforces it and you should add it to your other validations to check for empty states. Other validations will only fire if data exists.

DSRequiredTextValidationRule DSRequiredTextValidationRule DSValidationRule DSValidationRule DSRequiredTextValidationRule->DSValidationRule

Conforms To

DSValidationRule

A validation framework for defining how text entered into a DSTextField can be validated and an appropriate error message provided if that validation fails. Multiple DSValidationRule objects can stack to perform multiple validations including the special DSRequiredTextValidationRule which is the only built-in rule validates empty fields.

Initializers

init(message:​) 

public init(message: String)

Initializes the validation rule.

Parameters

message String

Error message to display if validator fails

Properties

error​Message 

public private(set) var errorMessage: String

The error message to be displayed when validation fails.

Methods

is​Valid(_:​) 

public func isValid(_ text: String) -> Bool

Valid only if non-empty.