FluentValidation 7.3.4

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There is a newer version of this package available.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 7.3.4
dotnet add package FluentValidation --version 7.3.4
<PackageReference Include="FluentValidation" Version="7.3.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 7.3.4
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

Changes in 7.3:
* Major changes to AspNetCore integration including better support for collections and implicit validation (opt-in)
* Fix - Updated EnumValidator's Flags support to handle the ~0 value
* Fix - TestHelper checking for child validator would respond with the wrong type
* Fix - Updated translations for some validators
* Fix - Overload of WithName that takes a lambda generated an exception
* Added versions of WhenAsync and UnlessAsync that support CancellationTokens
* Simplify calls to DependentRules
* Add Skip property to CustomizeValidatorAttribute in the ASP.NET Core integration

Changes in 7.2:
* Updated AspNetCore integration to support IValidatableObject
* Updated AspNetCore integration to allow mixing multiple validation strategies in the same model
* Updated AspNetCore integration to support RulesetForClientsideMessagesAttribute
* Fix - Property names were not generated properly for nested types when using AddFailure inside a Custom validator
* Fix - NullReferenceException when using CustomAsync but the validator is invoked synchronously
* Fix - Clientside integration in AspNetCore being resolved from the root-level service provider
* Fix - Allow empty string to be passed to OverridePropertyName

Changes in 7.1.1:
* Fix - Incorrect property name was generated when using RuleForEach combined with SetValidator
* Fix - Nesting async validators inside DependentRules didn't wait for completion

Changes in 7.1:
* New RuleFor().Custom() method as a replacement for the old, deprecated Custom method
* Improved messages in the ShouldHaveChildValidator test extension   
* Test helper works with nested properties
* Additional overload of WithState allows access to collection item when used with RuleForEach
* Fix - Wrong values were generated as part of the MVC5 clientside integration for MinLength and MaxLength validators
* Fix - AssemblyScanner now excludes abstract and generic types
* Fix - InvalidCastException when using lazy WithMessage combined with RuleForEach
* WithState enhanced to allow access to the ValidationContext

Changes in 7.0:

7.0 is a major release that contains several breaking changes, especially with Localization. If you use FluentValidation's support for localization please read the updated documentation: https://github.com/JeremySkinner/FluentValidation/wiki/f.-Localization

* Localization rewrite to not require satellite assemblies
* New 'Custom' rule method replaces the root-level Custom method
* Switch to Netstandard based build process
* Assemblies are now signed / strongly named - see https://github.com/JeremySkinner/FluentValidation/wiki/l.-Strong-naming-and-signed-packages
* Fix - Possible NullReferenceException in the AspNetCore clientside integration for length validators
* Fix - Don't clear the ModelValidatorProviders collection by default in the AspNetCore integration (added new ClearValidatorProviders property to control this behaviour)
* Fix - Ensure IValidatorFactory is resolved from request scope in asp.net core integration
* Fix - Property getter that throws an exception causes validation to fail in WebApi integration
* Fix - Issue in AspNetCore integration where we tried to resolve a collection validator in some situations where a class validator should be used
* Fix - Incorrect clientside validation attributes generated for email validator and credit card validator in the asp.net core integration
* Fix - Child model validation now works in webapi integration
* Improve splitting of PascalCased property names to support uppercase character sequences
* ValidationResult.ErrorCode property now always returns the type of the PropertyValidator that generated the message, unless it's been explicitly overriden

  Full release notes can be found at https://github.com/JeremySkinner/FluentValidation/blob/master/Changelog.txt

  • .NETFramework 4.5

    • No dependencies.
  • .NETStandard 1.0

  • .NETStandard 2.0

    • No dependencies.

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Read more about the GitHub Usage information on our documentation.

Version History

Version Downloads Last updated
9.0.0-preview5 136 5/23/2020
9.0.0-preview4 6,339 4/22/2020
9.0.0-preview3 27,356 2/29/2020
9.0.0-preview2 8,074 2/21/2020
9.0.0-preview1 17,485 2/8/2020
8.6.2 1,202,103 2/29/2020
8.6.1 1,832,382 12/28/2019
8.6.0 1,017,736 12/4/2019
8.5.1 926,528 11/2/2019
8.5.0 1,413,654 9/24/2019
8.5.0-preview5 37,452 9/1/2019
8.5.0-preview4 62,024 7/23/2019
8.5.0-preview3 25,107 7/10/2019
8.5.0-preview2 32,963 6/13/2019
8.5.0-preview1 38,583 5/10/2019
8.4.0 4,547,903 5/10/2019
8.3.0 593,157 4/24/2019
8.2.3 257,155 4/12/2019
8.2.2 396,776 4/5/2019
8.2.1 66,885 4/4/2019
8.2.0 431,785 3/26/2019
8.1.3 2,477,497 1/25/2019
8.1.2 1,009,125 12/18/2018
8.1.1 275,758 12/11/2018
8.1.0 197,661 12/6/2018
8.1.0-preview2 24,736 11/14/2018
8.1.0-preview1 24,841 10/14/2018
8.0.101 340,410 11/24/2018
8.0.100 1,805,996 9/4/2018
8.0.0 402,002 8/16/2018
8.0.0-rc1 33,430 7/24/2018
8.0.0-preview4 21,635 7/16/2018
8.0.0-preview3 20,474 7/13/2018
8.0.0-preview2 20,233 7/13/2018
7.6.105 361,063 8/11/2018
7.6.104 1,315,159 7/6/2018
7.6.103 568,546 6/16/2018
7.6.102 138,230 6/14/2018
7.6.101 57,798 6/13/2018
7.6.100 106,331 6/7/2018
7.6.0 215,178 6/1/2018
7.6.0-preview1 29,714 4/12/2018
7.5.2 1,578,144 3/16/2018
7.5.1 131,267 3/11/2018
7.5.0 427,641 2/26/2018
7.4.0 616,161 1/26/2018
7.3.4 511,784 1/2/2018
7.3.3 123,402 12/22/2017
7.3.2 41,063 12/21/2017
7.3.1 154,059 12/13/2017
7.3.0 29,981 12/13/2017
7.3.0-beta3 24,967 12/8/2017
7.3.0-beta2 35,725 11/20/2017
7.3.0-beta1 21,922 11/11/2017
7.2.1 1,270,467 10/24/2017
7.2.0 425,778 10/5/2017
7.2.0-beta3 37,223 9/5/2017
7.2.0-beta2 23,486 8/22/2017
7.2.0-beta1 20,436 8/19/2017
7.1.1 915,668 7/25/2017
7.1.0 292,226 6/28/2017
7.1.0-beta1 20,287 6/24/2017
7.0.3 227,911 6/7/2017
7.0.2 148,548 5/26/2017
7.0.1 54,847 5/23/2017
7.0.0 189,100 5/19/2017
7.0.0-beta3 24,118 5/1/2017
7.0.0-beta2 23,904 4/17/2017
7.0.0-beta1 21,435 4/7/2017
6.4.1 609,989 3/15/2017
6.4.1-beta1 21,190 3/13/2017
6.4.0 442,037 3/3/2017
6.4.0-rc4 142,316 2/13/2017
6.4.0-rc3 29,660 2/3/2017
6.4.0-rc2 36,369 1/30/2017
6.4.0-rc1 20,285 1/30/2017
6.4.0-beta9 74,835 11/21/2016
6.4.0-beta8 45,417 10/31/2016
6.4.0-beta7 20,844 10/28/2016
6.4.0-beta6 21,262 10/25/2016
6.4.0-beta5 20,959 10/24/2016
6.4.0-beta4 20,972 10/21/2016
6.4.0-beta3 61,765 7/4/2016
6.4.0-beta2 21,818 7/1/2016
6.4.0-beta10 20,140 1/30/2017
6.4.0-beta1 23,964 6/28/2016
6.3.4-alpha 191,649 6/1/2016
6.3.3-alpha 20,572 5/27/2016
6.2.1 2,029,640 2/26/2016
6.2.1-beta1 24,350 2/24/2016
6.2.0 69,276 2/22/2016
6.2.0-beta1 20,594 2/12/2016
6.1.0 223,057 1/18/2016
6.0.2 84,408 1/5/2016
6.0.1 32,728 1/5/2016
6.0.0 57,316 12/22/2015
5.6.2 730,208 5/29/2015
5.6.1 26,250 5/29/2015
5.5.0 552,019 10/31/2014
5.4.0 315,162 7/3/2014
5.3.0 72,091 5/27/2014
5.2.0 45,336 5/21/2014
5.1.0 325,065 3/11/2014
5.0.0.1 185,908 10/24/2013
4.0.0.1 153,661 7/18/2013
4.0.0 82,606 4/29/2013
3.4.6 202,375 8/30/2012
3.4.0 45,740 8/17/2012
3.3.1 39,633 3/30/2012
3.2.0 52,715 11/14/2011
3.1.0 46,541 7/30/2011
3.0.0.1 22,349 7/5/2011
3.0.0 25,104 6/25/2011
2.0.0 38,216 1/9/2011
1.3.0 39,679 1/7/2011
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