FluentValidation 9.3.0-preview3

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
59
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
56
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
55
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
55
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
54
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
53
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
53
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
52
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
51
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
51
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
50
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
50

FluentValidation 9 is a major release. Please read the upgrade notes at https://docs.fluentvalidation.net/en/latest/upgrading-to-9.html Changes in 9.3.0: * Improvements to LanguageManager's lazy loading of resources. * Deprecate IStringSource and its implementors. Use delegates instead. * CustomizeValidatorAttribute now works in Razor pages (netcore 3.1 and net 5.0 only) * RuleSetForClientSideMessagesAttribute now works in Razor pages (netcore 3.1 and net 5.0 only) Changes in 9.2.2: * Fix one of the inheritance validator overloads not working correctly. Changes in 9.2.1: * Add non-generic Add method to inheritance validator. * Updates to Persian translations. * Added Bengali translations. Changes in 9.2.0: * Add inheritance validator * Performance improvements 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 5.0

  • No dependencies.

.NET Standard 2.0

  • No dependencies.

Version Downloads Last updated
12.0.0 12 05/05/2025
12.0.0-preview1 25 01/06/2025
11.11.0 27 11/20/2024
11.10.0 31 09/16/2024
11.9.2 37 06/15/2024
11.9.1 36 05/10/2024
11.9.0 40 01/08/2024
11.8.1 43 11/25/2023
11.8.0 39 10/19/2023
11.7.1 42 08/28/2023
11.7.0 42 08/22/2023
11.6.0 43 08/11/2023
11.5.2 44 07/18/2023
11.5.1 34 08/08/2023
11.5.0 41 08/20/2023
11.4.0 40 05/17/2023
11.3.0 42 08/04/2023
11.2.2 42 10/25/2022
11.2.1 43 10/08/2022
11.2.0 42 12/19/2022
11.1.1 36 07/06/2023
11.1.0 46 07/11/2022
11.0.3 45 04/22/2023
11.0.2 44 03/29/2023
11.0.1 48 01/15/2023
11.0.0 39 12/28/2022
10.4.0 47 12/16/2022
10.3.6 45 04/03/2023
10.3.5 36 08/06/2023
10.3.4 47 03/31/2023
10.3.3 41 06/16/2023
10.3.1 45 05/13/2023
10.3.0 47 11/18/2022
10.2.3 43 05/06/2023
10.2.2 43 05/05/2023
10.2.1 43 12/17/2022
10.2.0 43 12/12/2022
10.1.0 43 11/24/2022
10.0.4 42 11/08/2022
9.5.4 42 04/21/2023
9.5.3 48 05/16/2023
9.5.2 48 06/15/2023
9.5.1 45 12/27/2022
9.5.0 49 11/08/2022
9.4.0 48 11/08/2022
9.3.0 49 12/14/2022
9.3.0-preview3 44 03/29/2023
9.3.0-preview2 42 01/27/2023
9.3.0-preview1 39 12/16/2022
9.2.2 41 07/29/2023
9.2.1 52 12/22/2022
9.2.0 34 08/12/2023
9.1.3 44 04/01/2023
9.1.2 41 11/26/2022
9.1.1 42 07/01/2023
9.1.0 44 05/02/2023
9.0.1 39 10/28/2022
9.0.0-preview5 35 03/18/2023
9.0.0-preview4 41 08/20/2023
9.0.0-preview3 41 02/26/2023
9.0.0-preview2 44 03/26/2023
9.0.0-preview1 41 11/12/2022
8.6.3 42 12/20/2022
8.6.2 40 05/07/2023
8.6.1 38 11/10/2022
8.6.0 44 11/12/2022
8.5.1 41 12/29/2022
8.5.0 44 12/24/2022
8.5.0-preview5 42 03/29/2023
8.5.0-preview4 43 02/04/2023
8.5.0-preview3 42 02/15/2023
8.5.0-preview2 48 04/15/2023
8.5.0-preview1 41 02/20/2023
8.4.0 44 11/18/2022
8.3.0 45 12/14/2022
8.2.3 43 11/27/2022
8.2.2 41 05/14/2023
8.2.1 46 08/27/2022
8.2.0 46 11/10/2022
8.1.3 44 11/23/2022
8.1.2 48 11/21/2022
8.1.1 46 04/18/2023
8.1.0 39 11/21/2022
8.1.0-preview2 42 01/14/2023
8.1.0-preview1 40 04/08/2023
8.0.101 38 05/17/2023
8.0.100 41 11/22/2022
8.0.0 38 11/15/2022
8.0.0-rc1 36 09/28/2023
8.0.0-preview4 40 08/10/2023
8.0.0-preview3 42 04/14/2023
8.0.0-preview2 43 11/14/2022
7.6.105 43 11/03/2022
7.6.104 43 05/02/2023
7.6.103 39 07/22/2023
7.6.102 47 11/09/2022
7.6.101 43 07/07/2023
7.6.100 43 04/09/2023
7.6.0 50 02/13/2023
7.6.0-preview1 50 04/02/2023
7.5.2 42 05/15/2023
7.5.1 42 11/23/2022
7.5.0 47 11/12/2022
7.4.0 48 11/18/2022
7.3.4 46 11/11/2022
7.3.3 46 11/07/2022
7.3.2 43 08/07/2023
7.3.1 43 08/04/2023
7.3.0 44 05/17/2023
7.3.0-beta3 32 08/05/2023
7.3.0-beta2 35 08/16/2023
7.3.0-beta1 41 08/20/2023
7.2.1 43 01/16/2023
7.2.0 47 11/21/2022
7.2.0-beta3 37 08/09/2023
7.2.0-beta2 39 08/06/2023
7.2.0-beta1 51 11/25/2022
7.1.1 43 10/25/2022
7.1.0 40 05/17/2023
7.1.0-beta1 39 09/23/2023
7.0.3 43 11/21/2022
7.0.2 40 11/09/2022
7.0.1 46 11/27/2022
7.0.0 39 11/13/2022
7.0.0-beta3 38 07/05/2023
7.0.0-beta2 35 07/30/2023
7.0.0-beta1 43 08/15/2023
6.4.1 34 07/15/2023
6.4.1-beta1 43 08/15/2023
6.4.0 39 04/09/2023
6.4.0-rc4 39 08/16/2023
6.4.0-rc3 43 08/12/2023
6.4.0-rc2 41 07/08/2023
6.4.0-rc1 35 08/02/2023
6.4.0-beta9 36 05/19/2023
6.4.0-beta8 43 08/16/2023
6.4.0-beta7 39 08/09/2023
6.4.0-beta6 46 08/06/2023
6.4.0-beta5 37 08/10/2023
6.4.0-beta4 37 08/15/2023
6.4.0-beta3 37 08/10/2023
6.4.0-beta2 41 08/07/2023
6.4.0-beta10 45 06/21/2023
6.4.0-beta1 44 08/07/2023
6.3.4-alpha 40 02/20/2023
6.3.3-alpha 41 04/30/2023
6.2.1 43 12/22/2022
6.2.1-beta1 39 08/06/2023
6.2.0 52 11/28/2022
6.2.0-beta1 36 11/17/2022
6.1.0 42 08/05/2023
6.0.2 40 12/31/2022
6.0.1 49 11/28/2022
6.0.0 43 11/20/2022
5.6.2 43 04/29/2023
5.6.1 42 12/20/2022
5.5.0 42 11/16/2022
5.4.0 45 02/10/2023
5.3.0 39 11/17/2022
5.2.0 48 12/02/2022
5.1.0 42 12/29/2022
5.0.0.1 38 12/31/2022
4.0.0.1 47 12/14/2022
4.0.0 44 11/28/2022
3.4.6 40 11/06/2022
3.4.0 37 11/12/2022
3.3.1 43 10/28/2022
3.2.0 47 03/11/2023
3.1.0 35 04/06/2023
3.0.0.1 44 12/13/2022
3.0.0 49 04/01/2023
2.0.0 40 12/21/2022
1.3.0 37 05/07/2023