FluentValidation 9.0.0-preview3

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

Showing the top 20 packages that depend on FluentValidation.

Packages Downloads
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
59
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
56
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
55
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
55
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
54
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
53
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
53
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
52
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
51
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
51
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
50
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
50

FluentValidation 9 is a major release. Please read the upgrade notes at https://docs.fluentvalidation.net/en/latest/upgrading-to-9.html Changes in 9.0.0: * Removed support for netstandard1.1 and netstandard1.6 * Default email validation mode now uses the same logic as ASP.NET Core. Previous regex behaviour is opt-in. * TestHelper advanced mode now has more features (see https://docs.fluentvalidation.net/en/latest/testing.html#advanced-test-extensions) * Equal/NotEqual now perform ordinal comparison when used with string properties * Severity can now be set dynamically with a callback * Removed WithLocalizedMessage (WithMessage that takes a callback is the replacement) * Removed ResourceName from ValidationFailure * Removed ResourceName and ResourceType from IStringSource. * Removed SetCollectionValidator which was deprecated in 8.0 * Additional overload of OnAnyFailure that can receive a collection of validation failures * Remove DisplayAttribute integration and reference to DataAnnotations. * ComparisonProperty placeholder is now formatted like PropertyName * Translations of default error messages into other languages are now lazily-loaded * Added Slovenian translations of default error messages. * Added WithMessageArgument to the test helpers. * Add additional overload of SetValidator that takes a Func that receives the current property value. * ASP.NET Core: FluentValidationModelValidatorProvider and FluentValidationModelValidator are now public. * Work around a bug in ASP.NET Core's integration testing components that can cause ConfigureServices to run multiple times. * SourceLink integration. * {CollectionIndex} placeholder can now be accessed in child validators. Full release notes can be found at https://github.com/FluentValidation/FluentValidation/blob/master/Changelog.txt FluentValidation 8 is a major release. Please read the upgrade notes at https://fluentvalidation.net/upgrading-to-8 Changes in 8.6.2: * Ensure CollectionIndex works in async workflow. Changes in 8.6.1: * Added explicit netcoreapp3.1 target to the ASP.NET Core integration. Changes in 8.6.0: * Add support for ASP.NET Core 3.1 * Fixed issue with property indexers being incorrectly stripped out when using test extensions. * AddToModelState no longer includes a dot if PropertyName is null Changes in 8.5.1: * Ensure lazily loaded calls to WithMessage can be used for client-side validation, provided they don't attempt to access model properties from inside the delegate (eg when using IStringLocalizer). * Fix issue where OnFailure didn't work properly when invoked on validators with conditions. Changes in 8.5.0: * Add additional overload of the EmailAddress validator for compatibility with ASP.NET Core's default email validation. * Simplify the advanced testhelper syntax. * Add support for ASP.NET Core 3. * Add support for defining child rules inline. * ValidatorDescriptor now has consistent handling of model-level rules. * RuleForEach can now access collection index in error message with {CollectionIndex} placeholder. * Welsh language translations of default error messages. * Hungrian language translations of default error messages. * Indonesian language translations of default error messages. * Using RuleForEach combined with When is now more intuitive. * Fixed order of rule execution when using async validation. Changes in 8.4.0: * Added simplified version of several messages across all translations to aid with ASP.NET Clientside validation. * New enum validator for string properties. Changes in 8.3.0: * Fix issue in ASP.NET Core integration with GetServiceProvider not working correctly when invoked against a CustomContext/MessageBuilderContext. * Improved how LanguageStringSource works with error-code overrides. * Fix thread-safety issue with use of PropertyValidatorOptions.Empty (now removed). * Improved how calls to When/Unless are handled internally. * DelegatingValidator is now marked as deprecated. * Improvements to Croatian language translations. * Improvements to Georgian language translations. * Resolved subtle bug where top-level WhenAsync wouldn't work correctly when wrapping a top-level call to When. Changes in 8.2.3: * Fix issue in WebApi integration where DataAnnotations validators could generate duplicate messages when in the same project as FluentValidation. Changes in 8.2.2: * Fix FluentValidation.DependencyInjection package name. Changes in 8.2.1: * Resolved issue using InjectValidator with RuleForEach. * Add support for a default IValidatorInterceptor to be registered with the ASP.NET Core Service Provider. Changes in 8.2.0: * Add extensions for injecting child validators using the ASP.NET Core Service Provider. * Implement RuleFor(...).ForEach(...) as an alternative to RuleForEach. * WithLocalizedMessage is deprecated. Use the overload of WithMessage that takes a Func instead. Changes in 8.1.3: * Resolved issue where clientside validation was incorrectly generating metadata for rules with shared conditions. * ScalePrecisionValidator now has a public method in the fluent interface. * Fix placeholder names in ScalePrecisionValidator for consistency. * Updates to Portuguese (Brazil) translations. Changes in 8.1.2: * Fix issue where shared When/Unless conditions didn't execute correctly when used with RuleForEach. Changes in 8.1.1: * Added RuleSetsExecuted property on ValidationResult. * Resolved issue introduced in 8.1 where the shared condition cache does not work correctly with RuleForEach (#970). Changes in 8.1: * Add format support in message placeholders. * Added support for overriding indexers for collection rules. * Allow error codes to be used to override localization key in the Language Manager. * Additional error details are now shown in the ShouldNotHaveValidationErrorFor test extension. * Conditions defined with root-level When/WhenAsync/Unless/UnlessAsync are now only executed once (instead of once for each rule). * Support Otherwise method chained from root-level When/WhenAsync/Unless/UnlessAsync. * Minor wording changes to default English error messages. * Japanese translation of the default error messages. * Added Skip property to MVC5's CustomizeValidatorAttribute for parity with AspNetCore and WebApi. * Remove type constraint on the OverridePropertyName overload that takes an expression. Added Skip property to MVC5's CustomizeValidatorAttribute to bring parity with AspNetCore and WebApi integration. Changes in 8.0: * Support validating only specific properties by path. * Added OnFailure method * Deprecated RuleFor(..).SetCollectionValidator in favour of RuleForEach(...).SetValidator * IStringSource.GetString now takes a validation context instead of a model instance. * Introduce PropertyValidatorOptions in order to clean up the IPropretyValidator interface. * Moved the legacy ValidatorAttribute and AttributedValidatorFactory into a separate FluentValidation.Attributes package. * Remove the pre-7.0 localization mechanism * Remove the pre-7.0 methods for custom validation * Removed many other deprecated methods Full release notes can be found at https://github.com/JeremySkinner/FluentValidation/blob/master/Changelog.txt

.NET Framework 4.6.1

  • No dependencies.

.NET Standard 2.0

  • No dependencies.

Version Downloads Last updated
12.0.0 12 05/05/2025
12.0.0-preview1 25 01/06/2025
11.11.0 27 11/20/2024
11.10.0 31 09/16/2024
11.9.2 37 06/15/2024
11.9.1 36 05/10/2024
11.9.0 40 01/08/2024
11.8.1 43 11/25/2023
11.8.0 39 10/19/2023
11.7.1 42 08/28/2023
11.7.0 42 08/22/2023
11.6.0 43 08/11/2023
11.5.2 44 07/18/2023
11.5.1 34 08/08/2023
11.5.0 41 08/20/2023
11.4.0 40 05/17/2023
11.3.0 42 08/04/2023
11.2.2 42 10/25/2022
11.2.1 43 10/08/2022
11.2.0 42 12/19/2022
11.1.1 36 07/06/2023
11.1.0 46 07/11/2022
11.0.3 45 04/22/2023
11.0.2 44 03/29/2023
11.0.1 48 01/15/2023
11.0.0 39 12/28/2022
10.4.0 47 12/16/2022
10.3.6 45 04/03/2023
10.3.5 36 08/06/2023
10.3.4 47 03/31/2023
10.3.3 41 06/16/2023
10.3.1 45 05/13/2023
10.3.0 47 11/18/2022
10.2.3 43 05/06/2023
10.2.2 43 05/05/2023
10.2.1 43 12/17/2022
10.2.0 43 12/12/2022
10.1.0 43 11/24/2022
10.0.4 42 11/08/2022
9.5.4 42 04/21/2023
9.5.3 48 05/16/2023
9.5.2 48 06/15/2023
9.5.1 45 12/27/2022
9.5.0 49 11/08/2022
9.4.0 48 11/08/2022
9.3.0 49 12/14/2022
9.3.0-preview3 44 03/29/2023
9.3.0-preview2 42 01/27/2023
9.3.0-preview1 39 12/16/2022
9.2.2 41 07/29/2023
9.2.1 52 12/22/2022
9.2.0 34 08/12/2023
9.1.3 44 04/01/2023
9.1.2 41 11/26/2022
9.1.1 42 07/01/2023
9.1.0 44 05/02/2023
9.0.1 39 10/28/2022
9.0.0-preview5 35 03/18/2023
9.0.0-preview4 41 08/20/2023
9.0.0-preview3 41 02/26/2023
9.0.0-preview2 44 03/26/2023
9.0.0-preview1 41 11/12/2022
8.6.3 42 12/20/2022
8.6.2 40 05/07/2023
8.6.1 38 11/10/2022
8.6.0 44 11/12/2022
8.5.1 41 12/29/2022
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8.5.0-preview5 42 03/29/2023
8.5.0-preview4 43 02/04/2023
8.5.0-preview3 42 02/15/2023
8.5.0-preview2 48 04/15/2023
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8.4.0 44 11/18/2022
8.3.0 45 12/14/2022
8.2.3 43 11/27/2022
8.2.2 41 05/14/2023
8.2.1 46 08/27/2022
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8.1.3 44 11/23/2022
8.1.2 48 11/21/2022
8.1.1 46 04/18/2023
8.1.0 39 11/21/2022
8.1.0-preview2 42 01/14/2023
8.1.0-preview1 40 04/08/2023
8.0.101 38 05/17/2023
8.0.100 41 11/22/2022
8.0.0 38 11/15/2022
8.0.0-rc1 36 09/28/2023
8.0.0-preview4 40 08/10/2023
8.0.0-preview3 42 04/14/2023
8.0.0-preview2 43 11/14/2022
7.6.105 43 11/03/2022
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7.6.102 47 11/09/2022
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7.6.100 43 04/09/2023
7.6.0 50 02/13/2023
7.6.0-preview1 50 04/02/2023
7.5.2 42 05/15/2023
7.5.1 42 11/23/2022
7.5.0 47 11/12/2022
7.4.0 48 11/18/2022
7.3.4 46 11/11/2022
7.3.3 46 11/07/2022
7.3.2 43 08/07/2023
7.3.1 43 08/04/2023
7.3.0 44 05/17/2023
7.3.0-beta3 32 08/05/2023
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7.3.0-beta1 41 08/20/2023
7.2.1 43 01/16/2023
7.2.0 47 11/21/2022
7.2.0-beta3 37 08/09/2023
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7.2.0-beta1 51 11/25/2022
7.1.1 43 10/25/2022
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7.1.0-beta1 39 09/23/2023
7.0.3 43 11/21/2022
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7.0.1 46 11/27/2022
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7.0.0-beta3 38 07/05/2023
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6.4.1 34 07/15/2023
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6.4.0 39 04/09/2023
6.4.0-rc4 39 08/16/2023
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6.4.0-rc1 35 08/02/2023
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6.3.4-alpha 40 02/20/2023
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6.2.1 43 12/22/2022
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6.2.0 52 11/28/2022
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6.1.0 42 08/05/2023
6.0.2 40 12/31/2022
6.0.1 49 11/28/2022
6.0.0 43 11/20/2022
5.6.2 43 04/29/2023
5.6.1 42 12/20/2022
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5.4.0 45 02/10/2023
5.3.0 39 11/17/2022
5.2.0 48 12/02/2022
5.1.0 42 12/29/2022
5.0.0.1 38 12/31/2022
4.0.0.1 47 12/14/2022
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3.4.6 40 11/06/2022
3.4.0 37 11/12/2022
3.3.1 43 10/28/2022
3.2.0 47 03/11/2023
3.1.0 35 04/06/2023
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3.0.0 49 04/01/2023
2.0.0 40 12/21/2022
1.3.0 37 05/07/2023