FluentValidation 9.0.0-preview4

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 prerelease version of this package available.
See the version list below for details.
Install-Package FluentValidation -Version 9.0.0-preview4
dotnet add package FluentValidation --version 9.0.0-preview4
<PackageReference Include="FluentValidation" Version="9.0.0-preview4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 9.0.0-preview4
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.

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Read more about the GitHub Usage information on our documentation.

Version History

Version Downloads Last updated
9.0.0-preview5 909 5/23/2020
9.0.0-preview4 7,856 4/22/2020
9.0.0-preview3 29,863 2/29/2020
9.0.0-preview2 8,607 2/21/2020
9.0.0-preview1 18,527 2/8/2020
8.6.2 1,374,863 2/29/2020
8.6.1 1,920,185 12/28/2019
8.6.0 1,060,371 12/4/2019
8.5.1 946,658 11/2/2019
8.5.0 1,443,088 9/24/2019
8.5.0-preview5 37,654 9/1/2019
8.5.0-preview4 62,576 7/23/2019
8.5.0-preview3 25,125 7/10/2019
8.5.0-preview2 33,061 6/13/2019
8.5.0-preview1 38,828 5/10/2019
8.4.0 4,614,617 5/10/2019
8.3.0 611,335 4/24/2019
8.2.3 259,961 4/12/2019
8.2.2 400,826 4/5/2019
8.2.1 67,441 4/4/2019
8.2.0 436,008 3/26/2019
8.1.3 2,498,320 1/25/2019
8.1.2 1,017,336 12/18/2018
8.1.1 281,016 12/11/2018
8.1.0 199,701 12/6/2018
8.1.0-preview2 24,755 11/14/2018
8.1.0-preview1 24,853 10/14/2018
8.0.101 342,433 11/24/2018
8.0.100 1,820,706 9/4/2018
8.0.0 405,018 8/16/2018
8.0.0-rc1 33,458 7/24/2018
8.0.0-preview4 21,643 7/16/2018
8.0.0-preview3 20,483 7/13/2018
8.0.0-preview2 20,243 7/13/2018
7.6.105 367,129 8/11/2018
7.6.104 1,323,910 7/6/2018
7.6.103 572,331 6/16/2018
7.6.102 138,976 6/14/2018
7.6.101 57,960 6/13/2018
7.6.100 107,666 6/7/2018
7.6.0 215,996 6/1/2018
7.6.0-preview1 29,748 4/12/2018
7.5.2 1,585,773 3/16/2018
7.5.1 133,490 3/11/2018
7.5.0 430,619 2/26/2018
7.4.0 620,339 1/26/2018
7.3.4 514,968 1/2/2018
7.3.3 124,008 12/22/2017
7.3.2 41,192 12/21/2017
7.3.1 155,080 12/13/2017
7.3.0 30,046 12/13/2017
7.3.0-beta3 24,978 12/8/2017
7.3.0-beta2 35,772 11/20/2017
7.3.0-beta1 21,931 11/11/2017
7.2.1 1,277,669 10/24/2017
7.2.0 427,863 10/5/2017
7.2.0-beta3 37,231 9/5/2017
7.2.0-beta2 23,513 8/22/2017
7.2.0-beta1 20,444 8/19/2017
7.1.1 919,461 7/25/2017
7.1.0 293,348 6/28/2017
7.1.0-beta1 20,295 6/24/2017
7.0.3 228,903 6/7/2017
7.0.2 148,931 5/26/2017
7.0.1 54,899 5/23/2017
7.0.0 190,308 5/19/2017
7.0.0-beta3 24,127 5/1/2017
7.0.0-beta2 23,914 4/17/2017
7.0.0-beta1 21,445 4/7/2017
6.4.1 613,228 3/15/2017
6.4.1-beta1 21,198 3/13/2017
6.4.0 444,781 3/3/2017
6.4.0-rc4 142,326 2/13/2017
6.4.0-rc3 29,677 2/3/2017
6.4.0-rc2 36,375 1/30/2017
6.4.0-rc1 20,294 1/30/2017
6.4.0-beta9 74,914 11/21/2016
6.4.0-beta8 45,472 10/31/2016
6.4.0-beta7 20,851 10/28/2016
6.4.0-beta6 21,269 10/25/2016
6.4.0-beta5 20,966 10/24/2016
6.4.0-beta4 20,980 10/21/2016
6.4.0-beta3 61,798 7/4/2016
6.4.0-beta2 21,825 7/1/2016
6.4.0-beta10 20,148 1/30/2017
6.4.0-beta1 23,970 6/28/2016
6.3.4-alpha 192,239 6/1/2016
6.3.3-alpha 20,579 5/27/2016
6.2.1 2,039,368 2/26/2016
6.2.1-beta1 24,364 2/24/2016
6.2.0 69,653 2/22/2016
6.2.0-beta1 20,603 2/12/2016
6.1.0 223,529 1/18/2016
6.0.2 84,605 1/5/2016
6.0.1 32,759 1/5/2016
6.0.0 57,394 12/22/2015
5.6.2 733,067 5/29/2015
5.6.1 26,269 5/29/2015
5.5.0 554,529 10/31/2014
5.4.0 316,356 7/3/2014
5.3.0 72,183 5/27/2014
5.2.0 45,456 5/21/2014
5.1.0 326,845 3/11/2014
5.0.0.1 186,416 10/24/2013
4.0.0.1 154,311 7/18/2013
4.0.0 82,804 4/29/2013
3.4.6 203,048 8/30/2012
3.4.0 45,814 8/17/2012
3.3.1 39,682 3/30/2012
3.2.0 52,752 11/14/2011
3.1.0 46,563 7/30/2011
3.0.0.1 22,358 7/5/2011
3.0.0 25,180 6/25/2011
2.0.0 38,346 1/9/2011
1.3.0 39,814 1/7/2011