FluentValidation 8.1.3

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There is a newer version of this package available.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 8.1.3
dotnet add package FluentValidation --version 8.1.3
<PackageReference Include="FluentValidation" Version="8.1.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 8.1.3
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 8.1.3:
* 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

Showing the top 10 GitHub repositories that depend on FluentValidation:

Repository Stars
aspnetboilerplate/aspnetboilerplate
ASP.NET Boilerplate - Web Application Framework
NancyFx/Nancy
Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono
Sonarr/Sonarr
Smart PVR for newsgroup and bittorrent users.
ThreeMammals/Ocelot
.NET core API Gateway
Radarr/Radarr
A fork of Sonarr to work with movies à la Couchpotato.
EduardoPires/EquinoxProject
Full ASP.NET Core 2.2 application with DDD, CQRS and Event Sourcing
JasonGT/NorthwindTraders
Northwind Traders is a sample application built using ASP.NET Core and Entity Framework Core.
abpframework/abp
Open Source Web Application Framework for ASP.NET Core
canton7/SyncTrayzor
Windows tray utility / filesystem watcher / launcher for Syncthing
exceptionless/Exceptionless
Exceptionless server and jobs

Version History

Version Downloads Last updated
8.5.0 94,491 9/24/2019
8.5.0-preview5 13,305 9/1/2019
8.5.0-preview4 38,504 7/23/2019
8.5.0-preview3 22,812 7/10/2019
8.5.0-preview2 28,331 6/13/2019
8.5.0-preview1 30,783 5/10/2019
8.4.0 1,853,069 5/10/2019
8.3.0 261,384 4/24/2019
8.2.3 164,005 4/12/2019
8.2.2 252,849 4/5/2019
8.2.1 43,838 4/4/2019
8.2.0 248,901 3/26/2019
8.1.3 1,572,782 1/25/2019
8.1.2 700,683 12/18/2018
8.1.1 195,221 12/11/2018
8.1.0 131,379 12/6/2018
8.1.0-preview2 23,912 11/14/2018
8.1.0-preview1 23,672 10/14/2018
8.0.101 263,399 11/24/2018
8.0.100 1,305,242 9/4/2018
8.0.0 311,773 8/16/2018
8.0.0-rc1 32,362 7/24/2018
8.0.0-preview4 21,276 7/16/2018
8.0.0-preview3 20,239 7/13/2018
8.0.0-preview2 19,997 7/13/2018
7.6.105 225,691 8/11/2018
7.6.104 974,990 7/6/2018
7.6.103 437,635 6/16/2018
7.6.102 114,196 6/14/2018
7.6.101 41,840 6/13/2018
7.6.100 77,181 6/7/2018
7.6.0 174,076 6/1/2018
7.6.0-preview1 27,895 4/12/2018
7.5.2 1,264,124 3/16/2018
7.5.1 95,570 3/11/2018
7.5.0 319,478 2/26/2018
7.4.0 483,384 1/26/2018
7.3.4 395,215 1/2/2018
7.3.3 108,525 12/22/2017
7.3.2 35,871 12/21/2017
7.3.1 131,102 12/13/2017
7.3.0 26,563 12/13/2017
7.3.0-beta3 24,746 12/8/2017
7.3.0-beta2 32,306 11/20/2017
7.3.0-beta1 21,586 11/11/2017
7.2.1 1,007,307 10/24/2017
7.2.0 332,378 10/5/2017
7.2.0-beta3 36,857 9/5/2017
7.2.0-beta2 23,189 8/22/2017
7.2.0-beta1 20,255 8/19/2017
7.1.1 786,023 7/25/2017
7.1.0 261,641 6/28/2017
7.1.0-beta1 20,108 6/24/2017
7.0.3 198,401 6/7/2017
7.0.2 132,625 5/26/2017
7.0.1 52,655 5/23/2017
7.0.0 140,189 5/19/2017
7.0.0-beta3 23,894 5/1/2017
7.0.0-beta2 23,677 4/17/2017
7.0.0-beta1 21,222 4/7/2017
6.4.1 518,572 3/15/2017
6.4.1-beta1 20,977 3/13/2017
6.4.0 386,991 3/3/2017
6.4.0-rc4 141,497 2/13/2017
6.4.0-rc3 29,344 2/3/2017
6.4.0-rc2 36,155 1/30/2017
6.4.0-rc1 20,097 1/30/2017
6.4.0-beta9 72,724 11/21/2016
6.4.0-beta8 43,818 10/31/2016
6.4.0-beta7 20,520 10/28/2016
6.4.0-beta6 20,932 10/25/2016
6.4.0-beta5 20,646 10/24/2016
6.4.0-beta4 20,661 10/21/2016
6.4.0-beta3 60,695 7/4/2016
6.4.0-beta2 21,495 7/1/2016
6.4.0-beta10 19,954 1/30/2017
6.4.0-beta1 23,474 6/28/2016
6.3.4-alpha 151,910 6/1/2016
6.3.3-alpha 20,370 5/27/2016
6.2.1 1,750,706 2/26/2016
6.2.1-beta1 24,122 2/24/2016
6.2.0 54,200 2/22/2016
6.2.0-beta1 20,391 2/12/2016
6.1.0 202,554 1/18/2016
6.0.2 76,645 1/5/2016
6.0.1 29,523 1/5/2016
6.0.0 51,287 12/22/2015
5.6.2 644,839 5/29/2015
5.6.1 25,652 5/29/2015
5.5.0 465,570 10/31/2014
5.4.0 274,971 7/3/2014
5.3.0 68,529 5/27/2014
5.2.0 40,333 5/21/2014
5.1.0 278,953 3/11/2014
5.0.0.1 168,614 10/24/2013
4.0.0.1 137,968 7/18/2013
4.0.0 78,680 4/29/2013
3.4.6 189,570 8/30/2012
3.4.0 43,343 8/17/2012
3.3.1 38,765 3/30/2012
3.2.0 51,567 11/14/2011
3.1.0 45,696 7/30/2011
3.0.0.1 22,091 7/5/2011
3.0.0 22,897 6/25/2011
2.0.0 34,338 1/9/2011
1.3.0 36,585 1/7/2011
Show less