FluentValidation 8.2.1

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There is a newer version of this package available.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 8.2.1
dotnet add package FluentValidation --version 8.2.1
<PackageReference Include="FluentValidation" Version="8.2.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 8.2.1
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 8.2.1:
* 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

Version History

Version Downloads Last updated
8.5.0-preview1 1,131 5/10/2019
8.4.0 41,303 5/10/2019
8.3.0 75,826 4/24/2019
8.2.3 51,387 4/12/2019
8.2.2 92,591 4/5/2019
8.2.1 8,717 4/4/2019
8.2.0 93,534 3/26/2019
8.1.3 734,430 1/25/2019
8.1.2 419,858 12/18/2018
8.1.1 107,846 12/11/2018
8.1.0 67,987 12/6/2018
8.1.0-preview2 4,059 11/14/2018
8.1.0-preview1 3,955 10/14/2018
8.0.101 180,776 11/24/2018
8.0.100 940,171 9/4/2018
8.0.0 228,438 8/16/2018
8.0.0-rc1 12,075 7/24/2018
8.0.0-preview4 1,763 7/16/2018
8.0.0-preview3 773 7/13/2018
8.0.0-preview2 541 7/13/2018
7.6.105 132,948 8/11/2018
7.6.104 734,982 7/6/2018
7.6.103 325,932 6/16/2018
7.6.102 70,081 6/14/2018
7.6.101 19,170 6/13/2018
7.6.100 47,949 6/7/2018
7.6.0 118,276 6/1/2018
7.6.0-preview1 8,181 4/12/2018
7.5.2 1,021,570 3/16/2018
7.5.1 63,255 3/11/2018
7.5.0 231,086 2/26/2018
7.4.0 372,147 1/26/2018
7.3.4 296,576 1/2/2018
7.3.3 77,609 12/22/2017
7.3.2 11,620 12/21/2017
7.3.1 90,222 12/13/2017
7.3.0 6,335 12/13/2017
7.3.0-beta3 5,347 12/8/2017
7.3.0-beta2 11,456 11/20/2017
7.3.0-beta1 2,097 11/11/2017
7.2.1 807,603 10/24/2017
7.2.0 238,323 10/5/2017
7.2.0-beta3 17,344 9/5/2017
7.2.0-beta2 3,692 8/22/2017
7.2.0-beta1 831 8/19/2017
7.1.1 669,916 7/25/2017
7.1.0 216,381 6/28/2017
7.1.0-beta1 712 6/24/2017
7.0.3 160,802 6/7/2017
7.0.2 97,054 5/26/2017
7.0.1 32,389 5/23/2017
7.0.0 91,031 5/19/2017
7.0.0-beta3 4,466 5/1/2017
7.0.0-beta2 4,274 4/17/2017
7.0.0-beta1 1,807 4/7/2017
6.4.1 434,999 3/15/2017
6.4.1-beta1 1,500 3/13/2017
6.4.0 330,285 3/3/2017
6.4.0-rc4 121,654 2/13/2017
6.4.0-rc3 9,863 2/3/2017
6.4.0-rc2 16,741 1/30/2017
6.4.0-rc1 668 1/30/2017
6.4.0-beta9 52,257 11/21/2016
6.4.0-beta8 23,756 10/31/2016
6.4.0-beta7 1,056 10/28/2016
6.4.0-beta6 1,460 10/25/2016
6.4.0-beta5 1,184 10/24/2016
6.4.0-beta4 1,175 10/21/2016
6.4.0-beta3 40,915 7/4/2016
6.4.0-beta2 1,989 7/1/2016
6.4.0-beta10 576 1/30/2017
6.4.0-beta1 3,855 6/28/2016
6.3.4-alpha 118,089 6/1/2016
6.3.3-alpha 961 5/27/2016
6.2.1 1,551,471 2/26/2016
6.2.1-beta1 4,694 2/24/2016
6.2.0 24,869 2/22/2016
6.2.0-beta1 973 2/12/2016
6.1.0 163,656 1/18/2016
6.0.2 52,004 1/5/2016
6.0.1 6,383 1/5/2016
6.0.0 26,769 12/22/2015
5.6.2 574,631 5/29/2015
5.6.1 5,874 5/29/2015
5.5.0 393,632 10/31/2014
5.4.0 243,592 7/3/2014
5.3.0 47,290 5/27/2014
5.2.0 18,596 5/21/2014
5.1.0 223,970 3/11/2014
5.0.0.1 134,260 10/24/2013
4.0.0.1 110,500 7/18/2013
4.0.0 57,190 4/29/2013
3.4.6 161,036 8/30/2012
3.4.0 22,975 8/17/2012
3.3.1 19,141 3/30/2012
3.2.0 31,778 11/14/2011
3.1.0 25,939 7/30/2011
3.0.0.1 2,642 7/5/2011
3.0.0 2,566 6/25/2011
2.0.0 12,163 1/9/2011
1.3.0 14,432 1/7/2011
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