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There is a newer version of this package available.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
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
8.1.1 4,790 12/11/2018
8.1.0 8,606 12/6/2018
8.1.0-preview2 1,739 11/14/2018
8.1.0-preview1 2,382 10/14/2018
8.0.101 40,963 11/24/2018
8.0.100 433,453 9/4/2018
8.0.0 134,303 8/16/2018
8.0.0-rc1 9,130 7/24/2018
8.0.0-preview4 1,302 7/16/2018
8.0.0-preview3 417 7/13/2018
8.0.0-preview2 201 7/13/2018
7.6.105 61,566 8/11/2018
7.6.104 408,516 7/6/2018
7.6.103 211,341 6/16/2018
7.6.102 38,526 6/14/2018
7.6.101 13,311 6/13/2018
7.6.100 33,317 6/7/2018
7.6.0 78,174 6/1/2018
7.6.0-preview1 6,923 4/12/2018
7.5.2 717,425 3/16/2018
7.5.1 47,147 3/11/2018
7.5.0 176,325 2/26/2018
7.4.0 278,559 1/26/2018
7.3.4 232,105 1/2/2018
7.3.3 62,937 12/22/2017
7.3.2 9,353 12/21/2017
7.3.1 66,363 12/13/2017
7.3.0 5,033 12/13/2017
7.3.0-beta3 5,043 12/8/2017
7.3.0-beta2 10,155 11/20/2017
7.3.0-beta1 1,778 11/11/2017
7.2.1 613,627 10/24/2017
7.2.0 153,279 10/5/2017
7.2.0-beta3 16,960 9/5/2017
7.2.0-beta2 3,322 8/22/2017
7.2.0-beta1 558 8/19/2017
7.1.1 550,718 7/25/2017
7.1.0 187,071 6/28/2017
7.1.0-beta1 428 6/24/2017
7.0.3 144,463 6/7/2017
7.0.2 82,719 5/26/2017
7.0.1 25,067 5/23/2017
7.0.0 46,553 5/19/2017
7.0.0-beta3 4,028 5/1/2017
7.0.0-beta2 3,950 4/17/2017
7.0.0-beta1 1,518 4/7/2017
6.4.1 369,451 3/15/2017
6.4.1-beta1 1,094 3/13/2017
6.4.0 284,452 3/3/2017
6.4.0-rc4 120,650 2/13/2017
6.4.0-rc3 9,467 2/3/2017
6.4.0-rc2 16,209 1/30/2017
6.4.0-rc1 352 1/30/2017
6.4.0-beta9 50,839 11/21/2016
6.4.0-beta8 22,048 10/31/2016
6.4.0-beta7 776 10/28/2016
6.4.0-beta6 1,171 10/25/2016
6.4.0-beta5 890 10/24/2016
6.4.0-beta4 884 10/21/2016
6.4.0-beta3 38,424 7/4/2016
6.4.0-beta2 1,710 7/1/2016
6.4.0-beta10 282 1/30/2017
6.4.0-beta1 3,401 6/28/2016
6.3.4-alpha 98,814 6/1/2016
6.3.3-alpha 693 5/27/2016
6.2.1 1,345,730 2/26/2016
6.2.1-beta1 4,324 2/24/2016
6.2.0 21,752 2/22/2016
6.2.0-beta1 716 2/12/2016
6.1.0 141,341 1/18/2016
6.0.2 46,527 1/5/2016
6.0.1 1,882 1/5/2016
6.0.0 22,191 12/22/2015
5.6.2 508,096 5/29/2015
5.6.1 5,289 5/29/2015
5.5.0 359,424 10/31/2014
5.4.0 227,445 7/3/2014
5.3.0 45,243 5/27/2014
5.2.0 16,206 5/21/2014
5.1.0 185,818 3/11/2014
5.0.0.1 117,772 10/24/2013
4.0.0.1 100,469 7/18/2013
4.0.0 54,347 4/29/2013
3.4.6 151,744 8/30/2012
3.4.0 21,185 8/17/2012
3.3.1 18,555 3/30/2012
3.2.0 30,533 11/14/2011
3.1.0 25,348 7/30/2011
3.0.0.1 2,339 7/5/2011
3.0.0 1,477 6/25/2011
2.0.0 9,140 1/9/2011
1.3.0 8,795 1/7/2011
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