View Source

Class ValueListUniqueValueValidator

Represents a validator which ensures that all values in the list are unique.

Inheritance

object

Namespace: Umbraco.Cms.Core.PropertyEditors

Assembly: Umbraco.Infrastructure.dll

Syntax

public class ValueListUniqueValueValidator : IValueValidator

Constructors

ValueListUniqueValueValidator(IConfigurationEditorJsonSerializer)

Initializes a new instance of the ValueListUniqueValueValidator class.

Declaration

public ValueListUniqueValueValidator(IConfigurationEditorJsonSerializer configurationEditorJsonSerializer)

Parameters

Type	Name	Description
IConfigurationEditorJsonSerializer	configurationEditorJsonSerializer	An instance used to serialize and deserialize configuration editor values as JSON.

Methods

Validate(object?, string?, object?, PropertyValidationContext)

Validates that all values in the provided list are unique.

Declaration

public IEnumerable<ValidationResult> Validate(object? value, string? valueType, object? dataTypeConfiguration, PropertyValidationContext validationContext)

Parameters

Type	Name	Description
object	value	The value to validate, expected to be either an System.Collections.Generic.IEnumerable<T> or a JSON-serialized string array representing the list of values.
string	valueType	The type of the value being validated (may be used for context).
object	dataTypeConfiguration	The configuration object for the data type (may be used for context).
PropertyValidationContext	validationContext	The context for property validation.

Returns

Type	Description
IEnumerable<ValidationResult>	An System.Collections.Generic.IEnumerable<T> containing a System.ComponentModel.DataAnnotations.ValidationResult for each duplicate value found in the list; returns an error if the value cannot be parsed as a list. If all values are unique or the input is null, returns an empty sequence.