FluentValidation 7.4.0

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
51
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
50
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
48
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
47
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
47
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
45
FluentValidation.DependencyInjectionExtensions
Dependenecy injection extensions for FluentValidation
45
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
44
FluentValidation.DependencyInjectionExtensions
Dependenecy injection extensions for FluentValidation
44
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
44
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
43

Changes in 7.4: * Improved syntax for DependentRules * ValidationException serialization support when running on full framework * Added ComparisonProperty placeholder to some validators * The Test Helper now correctly handles read-only properties * Add CancellationToken support to ValidateAndThrowAsync and various ValidateAsync overloads * Improved functionality for custom MessageBuilders * Updated AspNetCore integration to MVC version 2.0.2 * Update MVC5 AddToModelState extension not to overwrite existing attempted values * Added SetRulesetForClientsideMessages method for MVC5/AspNetCore as an alternative to using the RulesetForClientSideMessagesAttribute Changes in 7.3: * Major changes to AspNetCore integration including better support for collections and implicit validation (opt-in) * Fix - Updated EnumValidator's Flags support to handle the ~0 value * Fix - TestHelper checking for child validator would respond with the wrong type * Fix - Updated translations for some validators * Fix - Overload of WithName that takes a lambda generated an exception * Added versions of WhenAsync and UnlessAsync that support CancellationTokens * Simplify calls to DependentRules * Add Skip property to CustomizeValidatorAttribute in the ASP.NET Core integration Changes in 7.2: * Updated AspNetCore integration to support IValidatableObject * Updated AspNetCore integration to allow mixing multiple validation strategies in the same model * Updated AspNetCore integration to support RulesetForClientsideMessagesAttribute * Fix - Property names were not generated properly for nested types when using AddFailure inside a Custom validator * Fix - NullReferenceException when using CustomAsync but the validator is invoked synchronously * Fix - Clientside integration in AspNetCore being resolved from the root-level service provider * Fix - Allow empty string to be passed to OverridePropertyName Changes in 7.1.1: * Fix - Incorrect property name was generated when using RuleForEach combined with SetValidator * Fix - Nesting async validators inside DependentRules didn't wait for completion Changes in 7.1: * New RuleFor().Custom() method as a replacement for the old, deprecated Custom method * Improved messages in the ShouldHaveChildValidator test extension * Test helper works with nested properties * Additional overload of WithState allows access to collection item when used with RuleForEach * Fix - Wrong values were generated as part of the MVC5 clientside integration for MinLength and MaxLength validators * Fix - AssemblyScanner now excludes abstract and generic types * Fix - InvalidCastException when using lazy WithMessage combined with RuleForEach * WithState enhanced to allow access to the ValidationContext Changes in 7.0: 7.0 is a major release that contains several breaking changes, especially with Localization. If you use FluentValidation's support for localization please read the updated documentation: https://github.com/JeremySkinner/FluentValidation/wiki/f.-Localization * Localization rewrite to not require satellite assemblies * New 'Custom' rule method replaces the root-level Custom method * Switch to Netstandard based build process * Assemblies are now signed / strongly named - see https://github.com/JeremySkinner/FluentValidation/wiki/l.-Strong-naming-and-signed-packages * Fix - Possible NullReferenceException in the AspNetCore clientside integration for length validators * Fix - Don't clear the ModelValidatorProviders collection by default in the AspNetCore integration (added new ClearValidatorProviders property to control this behaviour) * Fix - Ensure IValidatorFactory is resolved from request scope in asp.net core integration * Fix - Property getter that throws an exception causes validation to fail in WebApi integration * Fix - Issue in AspNetCore integration where we tried to resolve a collection validator in some situations where a class validator should be used * Fix - Incorrect clientside validation attributes generated for email validator and credit card validator in the asp.net core integration * Fix - Child model validation now works in webapi integration * Improve splitting of PascalCased property names to support uppercase character sequences * ValidationResult.ErrorCode property now always returns the type of the PropertyValidator that generated the message, unless it's been explicitly overriden Full release notes can be found at https://github.com/JeremySkinner/FluentValidation/blob/master/Changelog.txt

.NET Framework 4.5

  • No dependencies.

.NET Standard 1.0

.NET Standard 2.0

  • No dependencies.

Version Downloads Last updated
12.0.0 4 05/05/2025
12.0.0-preview1 20 01/06/2025
11.11.0 22 11/20/2024
11.10.0 24 09/16/2024
11.9.2 31 06/15/2024
11.9.1 30 05/10/2024
11.9.0 32 01/08/2024
11.8.1 39 11/25/2023
11.8.0 35 10/19/2023
11.7.1 39 08/28/2023
11.7.0 40 08/22/2023
11.6.0 41 08/11/2023
11.5.2 38 07/18/2023
11.5.1 31 08/08/2023
11.5.0 38 08/20/2023
11.4.0 33 05/17/2023
11.3.0 35 08/04/2023
11.2.2 39 10/25/2022
11.2.1 39 10/08/2022
11.2.0 37 12/19/2022
11.1.1 32 07/06/2023
11.1.0 41 07/11/2022
11.0.3 42 04/22/2023
11.0.2 37 03/29/2023
11.0.1 44 01/15/2023
11.0.0 37 12/28/2022
10.4.0 44 12/16/2022
10.3.6 40 04/03/2023
10.3.5 33 08/06/2023
10.3.4 43 03/31/2023
10.3.3 37 06/16/2023
10.3.1 41 05/13/2023
10.3.0 41 11/18/2022
10.2.3 38 05/06/2023
10.2.2 38 05/05/2023
10.2.1 38 12/17/2022
10.2.0 40 12/12/2022
10.1.0 37 11/24/2022
10.0.4 39 11/08/2022
9.5.4 38 04/21/2023
9.5.3 43 05/16/2023
9.5.2 40 06/15/2023
9.5.1 42 12/27/2022
9.5.0 42 11/08/2022
9.4.0 43 11/08/2022
9.3.0 44 12/14/2022
9.3.0-preview3 40 03/29/2023
9.3.0-preview2 37 01/27/2023
9.3.0-preview1 36 12/16/2022
9.2.2 38 07/29/2023
9.2.1 45 12/22/2022
9.2.0 30 08/12/2023
9.1.3 39 04/01/2023
9.1.2 38 11/26/2022
9.1.1 40 07/01/2023
9.1.0 37 05/02/2023
9.0.1 36 10/28/2022
9.0.0-preview5 32 03/18/2023
9.0.0-preview4 38 08/20/2023
9.0.0-preview3 36 02/26/2023
9.0.0-preview2 41 03/26/2023
9.0.0-preview1 37 11/12/2022
8.6.3 36 12/20/2022
8.6.2 35 05/07/2023
8.6.1 35 11/10/2022
8.6.0 37 11/12/2022
8.5.1 38 12/29/2022
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8.5.0-preview5 37 03/29/2023
8.5.0-preview4 41 02/04/2023
8.5.0-preview3 38 02/15/2023
8.5.0-preview2 44 04/15/2023
8.5.0-preview1 35 02/20/2023
8.4.0 41 11/18/2022
8.3.0 40 12/14/2022
8.2.3 35 11/27/2022
8.2.2 38 05/14/2023
8.2.1 39 08/27/2022
8.2.0 43 11/10/2022
8.1.3 38 11/23/2022
8.1.2 42 11/21/2022
8.1.1 41 04/18/2023
8.1.0 36 11/21/2022
8.1.0-preview2 38 01/14/2023
8.1.0-preview1 37 04/08/2023
8.0.101 34 05/17/2023
8.0.100 38 11/22/2022
8.0.0 36 11/15/2022
8.0.0-rc1 32 09/28/2023
8.0.0-preview4 36 08/10/2023
8.0.0-preview3 38 04/14/2023
8.0.0-preview2 39 11/14/2022
7.6.105 39 11/03/2022
7.6.104 40 05/02/2023
7.6.103 35 07/22/2023
7.6.102 44 11/09/2022
7.6.101 39 07/07/2023
7.6.100 36 04/09/2023
7.6.0 46 02/13/2023
7.6.0-preview1 45 04/02/2023
7.5.2 39 05/15/2023
7.5.1 39 11/23/2022
7.5.0 41 11/12/2022
7.4.0 41 11/18/2022
7.3.4 41 11/11/2022
7.3.3 40 11/07/2022
7.3.2 38 08/07/2023
7.3.1 39 08/04/2023
7.3.0 39 05/17/2023
7.3.0-beta3 29 08/05/2023
7.3.0-beta2 32 08/16/2023
7.3.0-beta1 37 08/20/2023
7.2.1 37 01/16/2023
7.2.0 43 11/21/2022
7.2.0-beta3 34 08/09/2023
7.2.0-beta2 34 08/06/2023
7.2.0-beta1 44 11/25/2022
7.1.1 40 10/25/2022
7.1.0 37 05/17/2023
7.1.0-beta1 35 09/23/2023
7.0.3 40 11/21/2022
7.0.2 35 11/09/2022
7.0.1 40 11/27/2022
7.0.0 36 11/13/2022
7.0.0-beta3 36 07/05/2023
7.0.0-beta2 32 07/30/2023
7.0.0-beta1 39 08/15/2023
6.4.1 29 07/15/2023
6.4.1-beta1 39 08/15/2023
6.4.0 35 04/09/2023
6.4.0-rc4 31 08/16/2023
6.4.0-rc3 39 08/12/2023
6.4.0-rc2 37 07/08/2023
6.4.0-rc1 30 08/02/2023
6.4.0-beta9 33 05/19/2023
6.4.0-beta8 39 08/16/2023
6.4.0-beta7 36 08/09/2023
6.4.0-beta6 43 08/06/2023
6.4.0-beta5 31 08/10/2023
6.4.0-beta4 33 08/15/2023
6.4.0-beta3 31 08/10/2023
6.4.0-beta2 39 08/07/2023
6.4.0-beta10 39 06/21/2023
6.4.0-beta1 41 08/07/2023
6.3.4-alpha 35 02/20/2023
6.3.3-alpha 36 04/30/2023
6.2.1 39 12/22/2022
6.2.1-beta1 36 08/06/2023
6.2.0 48 11/28/2022
6.2.0-beta1 33 11/17/2022
6.1.0 38 08/05/2023
6.0.2 38 12/31/2022
6.0.1 43 11/28/2022
6.0.0 40 11/20/2022
5.6.2 40 04/29/2023
5.6.1 37 12/20/2022
5.5.0 39 11/16/2022
5.4.0 40 02/10/2023
5.3.0 35 11/17/2022
5.2.0 44 12/02/2022
5.1.0 39 12/29/2022
5.0.0.1 34 12/31/2022
4.0.0.1 44 12/14/2022
4.0.0 36 11/28/2022
3.4.6 36 11/06/2022
3.4.0 34 11/12/2022
3.3.1 39 10/28/2022
3.2.0 40 03/11/2023
3.1.0 31 04/06/2023
3.0.0.1 40 12/13/2022
3.0.0 41 04/01/2023
2.0.0 36 12/21/2022
1.3.0 35 05/07/2023