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
69
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
68
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
66
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
65
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
64
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
64
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
63
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
63
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
62
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
62
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
61
FluentValidation.DependencyInjectionExtensions
Dependenecy injection extensions for FluentValidation
61

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 27 05/05/2025
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11.11.0 39 11/20/2024
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11.9.0 52 01/08/2024
11.8.1 52 11/25/2023
11.8.0 50 10/19/2023
11.7.1 53 08/28/2023
11.7.0 52 08/22/2023
11.6.0 51 08/11/2023
11.5.2 53 07/18/2023
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11.4.0 49 05/17/2023
11.3.0 51 08/04/2023
11.2.2 54 10/25/2022
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11.1.1 44 07/06/2023
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11.0.3 57 04/22/2023
11.0.2 57 03/29/2023
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11.0.0 46 12/28/2022
10.4.0 58 12/16/2022
10.3.6 52 04/03/2023
10.3.5 46 08/06/2023
10.3.4 55 03/31/2023
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10.0.4 53 11/08/2022
9.5.4 55 04/21/2023
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9.5.2 60 06/15/2023
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9.3.0 62 12/14/2022
9.3.0-preview3 53 03/29/2023
9.3.0-preview2 51 01/27/2023
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9.2.2 52 07/29/2023
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9.2.0 48 08/12/2023
9.1.3 53 04/01/2023
9.1.2 50 11/26/2022
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9.1.0 57 05/02/2023
9.0.1 50 10/28/2022
9.0.0-preview5 48 03/18/2023
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8.6.3 52 12/20/2022
8.6.2 56 05/07/2023
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8.5.0-preview2 58 04/15/2023
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8.4.0 55 11/18/2022
8.3.0 57 12/14/2022
8.2.3 53 11/27/2022
8.2.2 49 05/14/2023
8.2.1 61 08/27/2022
8.2.0 57 11/10/2022
8.1.3 55 11/23/2022
8.1.2 57 11/21/2022
8.1.1 57 04/18/2023
8.1.0 49 11/21/2022
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8.1.0-preview1 50 04/08/2023
8.0.101 46 05/17/2023
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8.0.0 48 11/15/2022
8.0.0-rc1 45 09/28/2023
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8.0.0-preview3 49 04/14/2023
8.0.0-preview2 51 11/14/2022
7.6.105 50 11/03/2022
7.6.104 54 05/02/2023
7.6.103 48 07/22/2023
7.6.102 55 11/09/2022
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7.6.100 55 04/09/2023
7.6.0 61 02/13/2023
7.6.0-preview1 62 04/02/2023
7.5.2 52 05/15/2023
7.5.1 53 11/23/2022
7.5.0 59 11/12/2022
7.4.0 58 11/18/2022
7.3.4 56 11/11/2022
7.3.3 55 11/07/2022
7.3.2 53 08/07/2023
7.3.1 54 08/04/2023
7.3.0 53 05/17/2023
7.3.0-beta3 40 08/05/2023
7.3.0-beta2 46 08/16/2023
7.3.0-beta1 48 08/20/2023
7.2.1 54 01/16/2023
7.2.0 55 11/21/2022
7.2.0-beta3 46 08/09/2023
7.2.0-beta2 51 08/06/2023
7.2.0-beta1 59 11/25/2022
7.1.1 52 10/25/2022
7.1.0 51 05/17/2023
7.1.0-beta1 46 09/23/2023
7.0.3 56 11/21/2022
7.0.2 50 11/09/2022
7.0.1 59 11/27/2022
7.0.0 50 11/13/2022
7.0.0-beta3 46 07/05/2023
7.0.0-beta2 43 07/30/2023
7.0.0-beta1 52 08/15/2023
6.4.1 42 07/15/2023
6.4.1-beta1 52 08/15/2023
6.4.0 49 04/09/2023
6.4.0-rc4 50 08/16/2023
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6.4.0-rc1 45 08/02/2023
6.4.0-beta9 45 05/19/2023
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6.4.0-beta7 47 08/09/2023
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6.3.4-alpha 49 02/20/2023
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6.2.1 51 12/22/2022
6.2.1-beta1 47 08/06/2023
6.2.0 62 11/28/2022
6.2.0-beta1 43 11/17/2022
6.1.0 49 08/05/2023
6.0.2 48 12/31/2022
6.0.1 57 11/28/2022
6.0.0 52 11/20/2022
5.6.2 53 04/29/2023
5.6.1 51 12/20/2022
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5.3.0 51 11/17/2022
5.2.0 55 12/02/2022
5.1.0 50 12/29/2022
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4.0.0.1 56 12/14/2022
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3.4.6 48 11/06/2022
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3.3.1 51 10/28/2022
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3.1.0 42 04/06/2023
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3.0.0 62 04/01/2023
2.0.0 49 12/21/2022
1.3.0 45 05/07/2023