FluentValidation 7.5.0

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There is a newer version of this package available.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 7.5.0
dotnet add package FluentValidation --version 7.5.0
<PackageReference Include="FluentValidation" Version="7.5.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 7.5.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

Changes in 7.5:
* Better handling of clientside messages when using custom overriden language resources
* Added flag in the ValidationContext's RootDataContext when a validator is invoked by the automatic MVC/WebApi integration
* Improvements to some of the validation tester's messages
* Added Transform method to transform property values prior to validation
* Improve support for DisplayAttribute / DisplayNameAttribute when inferring property display name
* New language translations (Slovak/Hebrew/Brizilian Portuguese)
* Cache display names by default
* Ensure ShouldHaveChildValidator test method works with model-level rules

Changes in 7.4:
* Improved syntax for DependentRules
* ValidationException serialization support when running on full framework
* Added ComparisonProperty placeholder to some validators
* The Test Helper now correctly handles read-only properties
* Add CancellationToken support to ValidateAndThrowAsync and various ValidateAsync overloads
* Improved functionality for custom MessageBuilders
* Updated AspNetCore integration to MVC version 2.0.2
* Update MVC5 AddToModelState extension not to overwrite existing attempted values
* Added SetRulesetForClientsideMessages method for MVC5/AspNetCore as an alternative to using the RulesetForClientSideMessagesAttribute

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

Version History

Version Downloads Last updated
8.5.0-preview2 226 6/13/2019
8.5.0-preview1 4,123 5/10/2019
8.4.0 149,839 5/10/2019
8.3.0 110,690 4/24/2019
8.2.3 69,487 4/12/2019
8.2.2 121,662 4/5/2019
8.2.1 12,572 4/4/2019
8.2.0 115,184 3/26/2019
8.1.3 862,403 1/25/2019
8.1.2 462,417 12/18/2018
8.1.1 117,425 12/11/2018
8.1.0 75,333 12/6/2018
8.1.0-preview2 4,169 11/14/2018
8.1.0-preview1 4,062 10/14/2018
8.0.101 189,985 11/24/2018
8.0.100 993,788 9/4/2018
8.0.0 238,033 8/16/2018
8.0.0-rc1 12,270 7/24/2018
8.0.0-preview4 1,799 7/16/2018
8.0.0-preview3 810 7/13/2018
8.0.0-preview2 567 7/13/2018
7.6.105 144,931 8/11/2018
7.6.104 770,093 7/6/2018
7.6.103 340,458 6/16/2018
7.6.102 73,720 6/14/2018
7.6.101 19,773 6/13/2018
7.6.100 49,593 6/7/2018
7.6.0 123,284 6/1/2018
7.6.0-preview1 8,268 4/12/2018
7.5.2 1,054,328 3/16/2018
7.5.1 65,281 3/11/2018
7.5.0 239,319 2/26/2018
7.4.0 384,212 1/26/2018
7.3.4 306,660 1/2/2018
7.3.3 79,517 12/22/2017
7.3.2 12,027 12/21/2017
7.3.1 92,788 12/13/2017
7.3.0 6,478 12/13/2017
7.3.0-beta3 5,374 12/8/2017
7.3.0-beta2 11,751 11/20/2017
7.3.0-beta1 2,122 11/11/2017
7.2.1 834,624 10/24/2017
7.2.0 248,995 10/5/2017
7.2.0-beta3 17,370 9/5/2017
7.2.0-beta2 3,715 8/22/2017
7.2.0-beta1 851 8/19/2017
7.1.1 683,229 7/25/2017
7.1.0 220,372 6/28/2017
7.1.0-beta1 732 6/24/2017
7.0.3 163,284 6/7/2017
7.0.2 99,566 5/26/2017
7.0.1 32,565 5/23/2017
7.0.0 94,621 5/19/2017
7.0.0-beta3 4,488 5/1/2017
7.0.0-beta2 4,290 4/17/2017
7.0.0-beta1 1,830 4/7/2017
6.4.1 443,177 3/15/2017
6.4.1-beta1 1,530 3/13/2017
6.4.0 335,370 3/3/2017
6.4.0-rc4 121,735 2/13/2017
6.4.0-rc3 9,893 2/3/2017
6.4.0-rc2 16,761 1/30/2017
6.4.0-rc1 687 1/30/2017
6.4.0-beta9 52,429 11/21/2016
6.4.0-beta8 23,988 10/31/2016
6.4.0-beta7 1,075 10/28/2016
6.4.0-beta6 1,479 10/25/2016
6.4.0-beta5 1,203 10/24/2016
6.4.0-beta4 1,194 10/21/2016
6.4.0-beta3 40,994 7/4/2016
6.4.0-beta2 2,011 7/1/2016
6.4.0-beta10 592 1/30/2017
6.4.0-beta1 3,897 6/28/2016
6.3.4-alpha 119,863 6/1/2016
6.3.3-alpha 984 5/27/2016
6.2.1 1,577,510 2/26/2016
6.2.1-beta1 4,721 2/24/2016
6.2.0 26,445 2/22/2016
6.2.0-beta1 996 2/12/2016
6.1.0 167,010 1/18/2016
6.0.2 52,634 1/5/2016
6.0.1 7,203 1/5/2016
6.0.0 27,434 12/22/2015
5.6.2 582,708 5/29/2015
5.6.1 5,996 5/29/2015
5.5.0 399,942 10/31/2014
5.4.0 245,280 7/3/2014
5.3.0 47,549 5/27/2014
5.2.0 18,965 5/21/2014
5.1.0 229,027 3/11/2014
5.0.0.1 136,674 10/24/2013
4.0.0.1 111,742 7/18/2013
4.0.0 57,500 4/29/2013
3.4.6 162,771 8/30/2012
3.4.0 23,080 8/17/2012
3.3.1 19,199 3/30/2012
3.2.0 31,849 11/14/2011
3.1.0 26,005 7/30/2011
3.0.0.1 2,673 7/5/2011
3.0.0 2,752 6/25/2011
2.0.0 12,617 1/9/2011
1.3.0 14,914 1/7/2011
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