FluentValidation 9.0.0-preview5

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

This is a prerelease version of FluentValidation.
There is a newer version of this package available.
See the version list below for details.
Install-Package FluentValidation -Version 9.0.0-preview5
dotnet add package FluentValidation --version 9.0.0-preview5
<PackageReference Include="FluentValidation" Version="9.0.0-preview5" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 9.0.0-preview5
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

FluentValidation 9 is a major release. Please read the upgrade notes at https://docs.fluentvalidation.net/en/latest/upgrading-to-9.html

Changes in 9.0.0:
* Removed support for netstandard1.1 and netstandard1.6
* Removed support for end-of-life .NET Core versions (2.2 and 3.0). LTS versions are supported (2.1 and 3.1)
* Default email validation mode now uses the same logic as ASP.NET Core. Previous regex behaviour is opt-in.
* TestHelper advanced mode now has more features (see https://docs.fluentvalidation.net/en/latest/testing.html#advanced-test-extensions)
* Equal/NotEqual now perform ordinal comparison when used with string properties
* Severity can now be set dynamically with a callback
* Removed WithLocalizedMessage (WithMessage that takes a callback is the replacement)
* Removed ResourceName from ValidationFailure
* Removed ResourceName and ResourceType from IStringSource.
* Removed SetCollectionValidator which was deprecated in 8.0
* Additional overload of OnAnyFailure that can receive a collection of validation failures
* Remove DisplayAttribute integration and reference to DataAnnotations.
* ComparisonProperty placeholder is now formatted like PropertyName
* Translations of default error messages into other languages are now lazily-loaded
* Added Slovenian translations of default error messages.
* Added Icelandic translations of default error messages.
* Added WithMessageArgument to the test helpers.
* Add additional overload of SetValidator that takes a Func that receives the current property value.
* ASP.NET Core: FluentValidationModelValidatorProvider and FluentValidationModelValidator are now public.
* Work around a bug in ASP.NET Core's integration testing components that can cause ConfigureServices to run multiple times.
* SourceLink integration.
* {CollectionIndex} placeholder can now be accessed in child validators.
* Additional ValidationException constructor that allows using both the default message and a custom one together.
* ScalePrecisionValidator algorithm now matches SQL Server.
* Additional overload of the When methods that contain the validation context.

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

  • .NETFramework 4.6.1

    • No dependencies.
  • .NETStandard 2.0

    • No dependencies.

GitHub repositories (63)

Showing the top 5 popular 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.

Version History

Version Downloads Last updated
9.0.0 1,495 7/6/2020
9.0.0-preview5 9,860 5/23/2020
9.0.0-preview4 17,784 4/22/2020
9.0.0-preview3 42,842 2/29/2020
9.0.0-preview2 10,962 2/21/2020
9.0.0-preview1 22,260 2/8/2020
8.6.2 2,460,740 2/29/2020
8.6.1 2,342,033 12/28/2019
8.6.0 1,213,438 12/4/2019
8.5.1 1,057,545 11/2/2019
8.5.0 1,614,529 9/24/2019
8.5.0-preview5 38,952 9/1/2019
8.5.0-preview4 65,840 7/23/2019
8.5.0-preview3 25,345 7/10/2019
8.5.0-preview2 33,754 6/13/2019
8.5.0-preview1 39,881 5/10/2019
8.4.0 5,003,073 5/10/2019
8.3.0 722,271 4/24/2019
8.2.3 273,254 4/12/2019
8.2.2 421,553 4/5/2019
8.2.1 70,415 4/4/2019
8.2.0 456,447 3/26/2019
8.1.3 2,611,042 1/25/2019
8.1.2 1,058,394 12/18/2018
8.1.1 300,169 12/11/2018
8.1.0 214,457 12/6/2018
8.1.0-preview2 24,850 11/14/2018
8.1.0-preview1 24,930 10/14/2018
8.0.101 353,742 11/24/2018
8.0.100 1,902,720 9/4/2018
8.0.0 421,839 8/16/2018
8.0.0-rc1 33,818 7/24/2018
8.0.0-preview4 21,719 7/16/2018
8.0.0-preview3 20,568 7/13/2018
8.0.0-preview2 20,325 7/13/2018
7.6.105 401,661 8/11/2018
7.6.104 1,372,771 7/6/2018
7.6.103 593,285 6/16/2018
7.6.102 143,299 6/14/2018
7.6.101 58,364 6/13/2018
7.6.100 117,963 6/7/2018
7.6.0 221,146 6/1/2018
7.6.0-preview1 29,954 4/12/2018
7.5.2 1,637,530 3/16/2018
7.5.1 140,987 3/11/2018
7.5.0 445,294 2/26/2018
7.4.0 643,150 1/26/2018
7.3.4 534,031 1/2/2018
7.3.3 127,355 12/22/2017
7.3.2 42,032 12/21/2017
7.3.1 160,242 12/13/2017
7.3.0 30,603 12/13/2017
7.3.0-beta3 25,037 12/8/2017
7.3.0-beta2 36,027 11/20/2017
7.3.0-beta1 21,986 11/11/2017
7.2.1 1,321,932 10/24/2017
7.2.0 439,767 10/5/2017
7.2.0-beta3 37,334 9/5/2017
7.2.0-beta2 23,610 8/22/2017
7.2.0-beta1 20,491 8/19/2017
7.1.1 940,973 7/25/2017
7.1.0 298,661 6/28/2017
7.1.0-beta1 20,342 6/24/2017
7.0.3 234,891 6/7/2017
7.0.2 151,556 5/26/2017
7.0.1 55,112 5/23/2017
7.0.0 197,524 5/19/2017
7.0.0-beta3 24,214 5/1/2017
7.0.0-beta2 23,962 4/17/2017
7.0.0-beta1 21,498 4/7/2017
6.4.1 629,983 3/15/2017
6.4.1-beta1 21,246 3/13/2017
6.4.0 459,171 3/3/2017
6.4.0-rc4 142,406 2/13/2017
6.4.0-rc3 29,813 2/3/2017
6.4.0-rc2 36,424 1/30/2017
6.4.0-rc1 20,350 1/30/2017
6.4.0-beta9 75,341 11/21/2016
6.4.0-beta8 45,667 10/31/2016
6.4.0-beta7 20,897 10/28/2016
6.4.0-beta6 21,316 10/25/2016
6.4.0-beta5 21,014 10/24/2016
6.4.0-beta4 21,042 10/21/2016
6.4.0-beta3 62,022 7/4/2016
6.4.0-beta2 21,877 7/1/2016
6.4.0-beta10 20,195 1/30/2017
6.4.0-beta1 24,031 6/28/2016
6.3.4-alpha 196,190 6/1/2016
6.3.3-alpha 20,624 5/27/2016
6.2.1 2,099,078 2/26/2016
6.2.1-beta1 24,430 2/24/2016
6.2.0 71,775 2/22/2016
6.2.0-beta1 20,668 2/12/2016
6.1.0 225,887 1/18/2016
6.0.2 85,442 1/5/2016
6.0.1 32,885 1/5/2016
6.0.0 58,439 12/22/2015
5.6.2 747,265 5/29/2015
5.6.1 26,419 5/29/2015
5.5.0 568,097 10/31/2014
5.4.0 323,252 7/3/2014
5.3.0 72,789 5/27/2014
5.2.0 46,173 5/21/2014
5.1.0 337,501 3/11/2014
5.0.0.1 189,855 10/24/2013
4.0.0.1 156,690 7/18/2013
4.0.0 83,608 4/29/2013
3.4.6 207,726 8/30/2012
3.4.0 46,369 8/17/2012
3.3.1 39,996 3/30/2012
3.2.0 53,048 11/14/2011
3.1.0 46,743 7/30/2011
3.0.0.1 22,421 7/5/2011
3.0.0 25,506 6/25/2011
2.0.0 38,984 1/9/2011
1.3.0 40,870 1/7/2011