FluentValidation 9.2.0

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

Showing the top 20 packages that depend on FluentValidation.

Packages Downloads
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
3
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
2
FluentValidation.DependencyInjectionExtensions
Dependenecy injection extensions for FluentValidation
2
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
2
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
1

FluentValidation 9 is a major release. Please read the upgrade notes at https://docs.fluentvalidation.net/en/latest/upgrading-to-9.html Changes in 9.2.0: * Add inheritance validator Changes in 9.1.3: * Fix an issue with IncludeRulesNotInRuleSet not working correctly Changes in 9.1.2: * Make the ValidationContext.ThrowOnFailures getter public. Changes in 9.1.1: * Fix an incorrect deprecation message. Changes in 9.1: * Make ruleset separator character splitting consistent * Transform now works with RuleForEach * Introduce constants for rulesets * Resolve issue when attempting to use asynchronous conditions in a synchornous validaiton run * Added asynchronous versions of the TestHelper methods. * Introduce CascadeMode.Stop and deprecate CascadeMode.StopOnFirstFailure to resolve confusion/abiguity about setting the cascade mode at validator-level (#1437) * RaiseValidationException can be overridden to customize the exception throwing process * Add new Validate extension methods that allow options to be configured using a strategy 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. * Automatically scanned types can be excluded when calling RegisterValidatorsFromAssemblyContaining in ASP.NET Core projects. * New AutomaticValidationEnabled property for use in ASP.NET Core projects (defaults to true). Full release notes can be found at https://github.com/FluentValidation/FluentValidation/blob/master/Changelog.txt

.NET Framework 4.6.1

  • No dependencies.

.NET Standard 2.0

  • No dependencies.

Version Downloads Last updated
12.0.0 2 6/9/2025
12.0.0-preview1 0 1/2/2025
11.11.0 1 6/8/2025
11.10.0 0 6/14/2025
11.9.2 0 6/10/2024
11.9.1 0 4/23/2024
11.9.0 0 12/21/2023
11.8.1 1 6/9/2025
11.8.0 0 10/19/2023
11.7.1 0 8/12/2023
11.7.0 0 8/11/2023
11.6.0 0 7/4/2023
11.5.2 0 4/7/2023
11.5.1 0 2/20/2023
11.5.0 0 2/13/2023
11.4.0 0 11/23/2022
11.3.0 1 6/9/2025
11.2.2 0 9/11/2022
11.2.1 0 8/28/2022
11.2.0 0 8/8/2022
11.1.1 0 8/6/2022
11.1.0 0 6/9/2025
11.0.3 0 6/10/2022
11.0.2 0 5/27/2022
11.0.1 0 5/7/2022
11.0.0 0 4/30/2022
10.4.0 0 3/11/2022
10.3.6 0 12/13/2021
10.3.5 0 11/30/2021
10.3.4 1 6/6/2025
10.3.3 1 6/6/2025
10.3.1 1 6/6/2025
10.3.0 1 6/6/2025
10.2.3 1 6/6/2025
10.2.2 1 6/6/2025
10.2.1 1 6/6/2025
10.2.0 1 6/6/2025
10.1.0 2 6/6/2025
10.0.4 1 6/6/2025
9.5.4 1 6/6/2025
9.5.3 1 6/6/2025
9.5.2 1 6/6/2025
9.5.1 1 6/6/2025
9.5.0 1 6/6/2025
9.4.0 1 6/6/2025
9.3.0 1 6/6/2025
9.3.0-preview3 1 6/6/2025
9.3.0-preview2 1 6/6/2025
9.3.0-preview1 0 8/26/2020
9.2.2 0 9/20/2020
9.2.1 0 9/19/2020
9.2.0 1 6/6/2025
9.1.3 1 6/6/2025
9.1.2 2 6/6/2025
9.1.1 2 6/6/2025
9.1.0 1 6/6/2025
9.0.1 1 6/6/2025
9.0.0-preview5 1 6/6/2025
9.0.0-preview4 1 6/6/2025
9.0.0-preview3 1 6/6/2025
9.0.0-preview2 1 6/6/2025
9.0.0-preview1 1 6/6/2025
8.6.3 1 6/6/2025
8.6.2 1 6/6/2025
8.6.1 1 6/6/2025
8.6.0 1 6/6/2025
8.5.1 1 6/6/2025
8.5.0 1 6/6/2025
8.5.0-preview5 1 6/6/2025
8.5.0-preview4 1 6/6/2025
8.5.0-preview3 1 6/6/2025
8.5.0-preview2 1 6/6/2025
8.5.0-preview1 2 6/6/2025
8.4.0 1 6/6/2025
8.3.0 1 6/6/2025
8.2.3 1 6/6/2025
8.2.2 1 6/6/2025
8.2.1 1 6/7/2025
8.2.0 0 3/26/2019
8.1.3 0 1/25/2019
8.1.2 1 6/6/2025
8.1.1 1 6/6/2025
8.1.0 0 12/6/2018
8.1.0-preview2 0 11/14/2018
8.1.0-preview1 1 6/6/2025
8.0.101 1 6/7/2025
8.0.100 1 6/6/2025
8.0.0 1 6/6/2025
8.0.0-rc1 1 6/6/2025
8.0.0-preview4 1 6/6/2025
8.0.0-preview3 1 6/6/2025
8.0.0-preview2 1 6/6/2025
7.6.105 1 6/6/2025
7.6.104 1 6/7/2025
7.6.103 1 6/6/2025
7.6.102 1 6/6/2025
7.6.101 0 6/13/2018
7.6.100 1 6/6/2025
7.6.0 1 6/6/2025
7.6.0-preview1 1 6/6/2025
7.5.2 1 6/6/2025
7.5.1 1 6/6/2025
7.5.0 1 6/6/2025
7.4.0 0 1/26/2018
7.3.4 0 1/2/2018
7.3.3 1 6/6/2025
7.3.2 1 6/6/2025
7.3.1 0 12/13/2017
7.3.0 1 6/6/2025
7.3.0-beta3 1 6/6/2025
7.3.0-beta2 1 6/6/2025
7.3.0-beta1 1 6/6/2025
7.2.1 1 6/6/2025
7.2.0 1 6/6/2025
7.2.0-beta3 1 6/6/2025
7.2.0-beta2 1 6/6/2025
7.2.0-beta1 1 6/6/2025
7.1.1 1 6/6/2025
7.1.0 1 6/6/2025
7.1.0-beta1 1 6/6/2025
7.0.3 0 6/7/2017
7.0.2 1 6/6/2025
7.0.1 1 6/6/2025
7.0.0 1 6/6/2025
7.0.0-beta3 1 6/6/2025
7.0.0-beta2 2 6/6/2025
7.0.0-beta1 2 6/6/2025
6.4.1 1 6/6/2025
6.4.1-beta1 1 6/6/2025
6.4.0 0 3/3/2017
6.4.0-rc4 1 6/6/2025
6.4.0-rc3 1 6/6/2025
6.4.0-rc2 0 1/30/2017
6.4.0-rc1 1 6/6/2025
6.4.0-beta9 1 6/6/2025
6.4.0-beta8 1 6/6/2025
6.4.0-beta7 1 6/6/2025
6.4.0-beta6 1 6/6/2025
6.4.0-beta5 1 6/6/2025
6.4.0-beta4 1 6/6/2025
6.4.0-beta3 1 6/6/2025
6.4.0-beta2 1 6/6/2025
6.4.0-beta10 1 6/6/2025
6.4.0-beta1 1 6/6/2025
6.3.4-alpha 1 6/6/2025
6.3.3-alpha 1 6/6/2025
6.2.1 1 6/8/2025
6.2.1-beta1 1 6/6/2025
6.2.0 1 6/8/2025
6.2.0-beta1 1 6/6/2025
6.1.0 1 6/8/2025
6.0.2 1 6/8/2025
6.0.1 1 6/8/2025
6.0.0 1 6/8/2025
5.6.2 1 6/8/2025
5.6.1 1 6/8/2025
5.5.0 1 6/8/2025
5.4.0 1 6/8/2025
5.3.0 1 6/8/2025
5.2.0 1 6/8/2025
5.1.0 1 6/8/2025
5.0.0.1 0 10/24/2013
4.0.0.1 1 6/6/2025
4.0.0 1 6/8/2025
3.4.6 1 6/7/2025
3.4.0 1 6/6/2025
3.3.1 1 6/8/2025
3.2.0 1 6/8/2025
3.1.0 1 6/8/2025
3.0.0.1 1 6/6/2025
3.0.0 1 6/8/2025
2.0.0 0 1/9/2011
1.3.0 1 6/8/2025