FluentValidation 8.2.0

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

There is a newer version of this package available.
See the version list below for details.
Install-Package FluentValidation -Version 8.2.0
dotnet add package FluentValidation --version 8.2.0
<PackageReference Include="FluentValidation" Version="8.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 8.2.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

FluentValidation 8 is a major release. Please read the upgrade notes at https://fluentvalidation.net/upgrading-to-8

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

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Read more about the GitHub Usage information on our documentation.

Version History

Version Downloads Last updated
8.6.1 153,869 12/28/2019
8.6.0 302,896 12/4/2019
8.5.1 443,943 11/2/2019
8.5.0 774,157 9/24/2019
8.5.0-preview5 29,223 9/1/2019
8.5.0-preview4 50,182 7/23/2019
8.5.0-preview3 24,145 7/10/2019
8.5.0-preview2 30,951 6/13/2019
8.5.0-preview1 33,976 5/10/2019
8.4.0 3,178,262 5/10/2019
8.3.0 353,095 4/24/2019
8.2.3 206,095 4/12/2019
8.2.2 324,953 4/5/2019
8.2.1 53,946 4/4/2019
8.2.0 331,857 3/26/2019
8.1.3 2,038,387 1/25/2019
8.1.2 836,245 12/18/2018
8.1.1 227,902 12/11/2018
8.1.0 158,217 12/6/2018
8.1.0-preview2 24,233 11/14/2018
8.1.0-preview1 24,304 10/14/2018
8.0.101 302,698 11/24/2018
8.0.100 1,517,766 9/4/2018
8.0.0 351,097 8/16/2018
8.0.0-rc1 32,901 7/24/2018
8.0.0-preview4 21,418 7/16/2018
8.0.0-preview3 20,319 7/13/2018
8.0.0-preview2 20,079 7/13/2018
7.6.105 277,640 8/11/2018
7.6.104 1,107,930 7/6/2018
7.6.103 496,646 6/16/2018
7.6.102 122,939 6/14/2018
7.6.101 45,708 6/13/2018
7.6.100 85,543 6/7/2018
7.6.0 194,891 6/1/2018
7.6.0-preview1 28,680 4/12/2018
7.5.2 1,400,298 3/16/2018
7.5.1 109,539 3/11/2018
7.5.0 370,198 2/26/2018
7.4.0 540,457 1/26/2018
7.3.4 449,633 1/2/2018
7.3.3 114,299 12/22/2017
7.3.2 38,775 12/21/2017
7.3.1 142,377 12/13/2017
7.3.0 28,023 12/13/2017
7.3.0-beta3 24,816 12/8/2017
7.3.0-beta2 34,209 11/20/2017
7.3.0-beta1 21,745 11/11/2017
7.2.1 1,114,362 10/24/2017
7.2.0 383,424 10/5/2017
7.2.0-beta3 37,041 9/5/2017
7.2.0-beta2 23,269 8/22/2017
7.2.0-beta1 20,301 8/19/2017
7.1.1 844,938 7/25/2017
7.1.0 275,677 6/28/2017
7.1.0-beta1 20,154 6/24/2017
7.0.3 209,817 6/7/2017
7.0.2 140,870 5/26/2017
7.0.1 54,026 5/23/2017
7.0.0 162,023 5/19/2017
7.0.0-beta3 23,952 5/1/2017
7.0.0-beta2 23,750 4/17/2017
7.0.0-beta1 21,274 4/7/2017
6.4.1 554,885 3/15/2017
6.4.1-beta1 21,038 3/13/2017
6.4.0 405,338 3/3/2017
6.4.0-rc4 141,884 2/13/2017
6.4.0-rc3 29,413 2/3/2017
6.4.0-rc2 36,220 1/30/2017
6.4.0-rc1 20,142 1/30/2017
6.4.0-beta9 73,653 11/21/2016
6.4.0-beta8 44,099 10/31/2016
6.4.0-beta7 20,680 10/28/2016
6.4.0-beta6 21,088 10/25/2016
6.4.0-beta5 20,795 10/24/2016
6.4.0-beta4 20,807 10/21/2016
6.4.0-beta3 61,054 7/4/2016
6.4.0-beta2 21,641 7/1/2016
6.4.0-beta10 20,000 1/30/2017
6.4.0-beta1 23,721 6/28/2016
6.3.4-alpha 171,285 6/1/2016
6.3.3-alpha 20,417 5/27/2016
6.2.1 1,868,403 2/26/2016
6.2.1-beta1 24,180 2/24/2016
6.2.0 61,290 2/22/2016
6.2.0-beta1 20,439 2/12/2016
6.1.0 213,857 1/18/2016
6.0.2 80,447 1/5/2016
6.0.1 31,610 1/5/2016
6.0.0 56,264 12/22/2015
5.6.2 680,426 5/29/2015
5.6.1 25,856 5/29/2015
5.5.0 507,404 10/31/2014
5.4.0 289,797 7/3/2014
5.3.0 70,192 5/27/2014
5.2.0 42,886 5/21/2014
5.1.0 299,508 3/11/2014
5.0.0.1 175,765 10/24/2013
4.0.0.1 144,509 7/18/2013
4.0.0 80,336 4/29/2013
3.4.6 195,315 8/30/2012
3.4.0 44,187 8/17/2012
3.3.1 39,020 3/30/2012
3.2.0 52,059 11/14/2011
3.1.0 45,965 7/30/2011
3.0.0.1 22,174 7/5/2011
3.0.0 23,762 6/25/2011
2.0.0 36,414 1/9/2011
1.3.0 37,851 1/7/2011
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