FluentValidation 7.3.0

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There is a newer version of this package available.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 7.3.0
dotnet add package FluentValidation --version 7.3.0
<PackageReference Include="FluentValidation" Version="7.3.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 7.3.0
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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Version History

Version Downloads Last updated
8.5.0-preview4 7,851 7/23/2019
8.5.0-preview3 2,372 7/10/2019
8.5.0-preview2 6,709 6/13/2019
8.5.0-preview1 8,993 5/10/2019
8.4.0 922,543 5/10/2019
8.3.0 191,519 4/24/2019
8.2.3 116,196 4/12/2019
8.2.2 189,361 4/5/2019
8.2.1 20,018 4/4/2019
8.2.0 180,133 3/26/2019
8.1.3 1,251,260 1/25/2019
8.1.2 595,106 12/18/2018
8.1.1 150,341 12/11/2018
8.1.0 97,307 12/6/2018
8.1.0-preview2 4,425 11/14/2018
8.1.0-preview1 4,270 10/14/2018
8.0.101 220,078 11/24/2018
8.0.100 1,161,317 9/4/2018
8.0.0 269,233 8/16/2018
8.0.0-rc1 12,844 7/24/2018
8.0.0-preview4 1,947 7/16/2018
8.0.0-preview3 925 7/13/2018
8.0.0-preview2 670 7/13/2018
7.6.105 176,464 8/11/2018
7.6.104 877,311 7/6/2018
7.6.103 383,499 6/16/2018
7.6.102 86,784 6/14/2018
7.6.101 21,353 6/13/2018
7.6.100 54,521 6/7/2018
7.6.0 140,428 6/1/2018
7.6.0-preview1 8,458 4/12/2018
7.5.2 1,162,201 3/16/2018
7.5.1 71,445 3/11/2018
7.5.0 271,059 2/26/2018
7.4.0 429,812 1/26/2018
7.3.4 345,766 1/2/2018
7.3.3 86,240 12/22/2017
7.3.2 14,423 12/21/2017
7.3.1 102,757 12/13/2017
7.3.0 6,922 12/13/2017
7.3.0-beta3 5,433 12/8/2017
7.3.0-beta2 12,446 11/20/2017
7.3.0-beta1 2,236 11/11/2017
7.2.1 928,308 10/24/2017
7.2.0 283,413 10/5/2017
7.2.0-beta3 17,508 9/5/2017
7.2.0-beta2 3,851 8/22/2017
7.2.0-beta1 931 8/19/2017
7.1.1 731,957 7/25/2017
7.1.0 233,031 6/28/2017
7.1.0-beta1 804 6/24/2017
7.0.3 171,853 6/7/2017
7.0.2 106,349 5/26/2017
7.0.1 33,020 5/23/2017
7.0.0 109,162 5/19/2017
7.0.0-beta3 4,573 5/1/2017
7.0.0-beta2 4,373 4/17/2017
7.0.0-beta1 1,917 4/7/2017
6.4.1 473,351 3/15/2017
6.4.1-beta1 1,640 3/13/2017
6.4.0 352,149 3/3/2017
6.4.0-rc4 122,037 2/13/2017
6.4.0-rc3 10,011 2/3/2017
6.4.0-rc2 16,844 1/30/2017
6.4.0-rc1 778 1/30/2017
6.4.0-beta9 53,017 11/21/2016
6.4.0-beta8 24,376 10/31/2016
6.4.0-beta7 1,186 10/28/2016
6.4.0-beta6 1,578 10/25/2016
6.4.0-beta5 1,318 10/24/2016
6.4.0-beta4 1,315 10/21/2016
6.4.0-beta3 41,262 7/4/2016
6.4.0-beta2 2,132 7/1/2016
6.4.0-beta10 665 1/30/2017
6.4.0-beta1 4,084 6/28/2016
6.3.4-alpha 125,906 6/1/2016
6.3.3-alpha 1,059 5/27/2016
6.2.1 1,665,372 2/26/2016
6.2.1-beta1 4,804 2/24/2016
6.2.0 31,013 2/22/2016
6.2.0-beta1 1,071 2/12/2016
6.1.0 177,045 1/18/2016
6.0.2 55,324 1/5/2016
6.0.1 9,417 1/5/2016
6.0.0 29,461 12/22/2015
5.6.2 606,961 5/29/2015
5.6.1 6,239 5/29/2015
5.5.0 422,116 10/31/2014
5.4.0 250,771 7/3/2014
5.3.0 48,402 5/27/2014
5.2.0 20,130 5/21/2014
5.1.0 245,356 3/11/2014
5.0.0.1 143,857 10/24/2013
4.0.0.1 115,138 7/18/2013
4.0.0 58,510 4/29/2013
3.4.6 167,066 8/30/2012
3.4.0 23,606 8/17/2012
3.3.1 19,385 3/30/2012
3.2.0 32,121 11/14/2011
3.1.0 26,252 7/30/2011
3.0.0.1 2,764 7/5/2011
3.0.0 3,358 6/25/2011
2.0.0 14,240 1/9/2011
1.3.0 16,661 1/7/2011
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