FluentValidation 7.3.0-beta1

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
125
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
126
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
127
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
147
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
166
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
255
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
375
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
1,063
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
129
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
133
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
155
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
168
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
282
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
362
FluentValidation.DependencyInjectionExtensions
Dependenecy injection extensions for FluentValidation
125
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
155
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
168
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
219
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
346
RulesEngine
Rules Engine is a package for abstracting business logic/rules/policies out of the system. This works in a very simple way by giving you an ability to put your rules in a store outside the core logic of the system thus ensuring that any change in rules doesn't affect the core system.
544

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

Version Downloads Last updated
12.1.1 12 12/04/2025
12.1.0 94 11/04/2025
12.0.0 295 05/06/2025
12.0.0-preview1 79 01/03/2025
11.12.0 36 11/07/2025
11.11.0 232 11/20/2024
11.10.0 325 09/20/2024
11.9.2 244 06/27/2024
11.9.1 117 07/22/2024
11.9.0 265 02/05/2024
11.8.1 150 07/22/2024
11.8.0 107 07/22/2024
11.7.1 94 07/22/2024
11.7.0 104 07/22/2024
11.6.0 106 07/22/2024
11.5.2 101 07/22/2024
11.5.1 244 02/04/2024
11.5.0 101 07/22/2024
11.4.0 103 07/17/2024
11.3.0 127 02/04/2024
11.2.2 104 07/22/2024
11.2.1 111 07/22/2024
11.2.0 113 07/22/2024
11.1.1 104 07/22/2024
11.1.0 108 07/13/2024
11.0.3 117 07/22/2024
11.0.2 103 07/22/2024
11.0.1 96 07/22/2024
11.0.0 105 07/22/2024
10.4.0 205 02/04/2024
10.3.6 103 07/22/2024
10.3.5 95 07/22/2024
10.3.4 111 07/17/2024
10.3.3 113 07/17/2024
10.3.1 118 07/22/2024
10.3.0 98 05/29/2024
10.2.3 111 07/22/2024
10.2.2 101 07/22/2024
10.2.1 94 07/22/2024
10.2.0 104 07/22/2024
10.1.0 111 07/22/2024
10.0.4 109 07/22/2024
9.5.4 120 07/22/2024
9.5.3 103 07/22/2024
9.5.2 112 07/22/2024
9.5.1 102 07/22/2024
9.5.0 121 02/09/2024
9.4.0 104 07/22/2024
9.3.0 105 07/22/2024
9.3.0-preview3 106 07/22/2024
9.3.0-preview2 106 07/22/2024
9.3.0-preview1 119 07/22/2024
9.2.2 105 07/22/2024
9.2.1 106 07/18/2024
9.2.0 95 07/22/2024
9.1.3 117 07/22/2024
9.1.2 104 07/22/2024
9.1.1 98 07/22/2024
9.1.0 105 07/22/2024
9.0.1 111 07/22/2024
9.0.0-preview5 106 07/22/2024
9.0.0-preview4 98 07/22/2024
9.0.0-preview3 113 07/22/2024
9.0.0-preview2 100 07/22/2024
9.0.0-preview1 105 07/22/2024
8.6.3 110 07/22/2024
8.6.2 94 07/22/2024
8.6.1 103 07/22/2024
8.6.0 105 07/22/2024
8.5.1 108 07/21/2024
8.5.0 107 07/18/2024
8.5.0-preview5 112 07/22/2024
8.5.0-preview4 103 07/22/2024
8.5.0-preview3 99 07/22/2024
8.5.0-preview2 113 07/22/2024
8.5.0-preview1 103 07/22/2024
8.4.0 114 07/22/2024
8.3.0 112 07/22/2024
8.2.3 105 07/22/2024
8.2.2 101 07/22/2024
8.2.1 108 07/22/2024
8.2.0 113 07/22/2024
8.1.3 115 07/22/2024
8.1.2 97 07/22/2024
8.1.1 99 07/22/2024
8.1.0 113 07/22/2024
8.1.0-preview2 101 07/22/2024
8.1.0-preview1 114 07/22/2024
8.0.101 110 07/22/2024
8.0.100 99 07/17/2024
8.0.0 99 07/22/2024
8.0.0-rc1 113 07/22/2024
8.0.0-preview4 101 07/22/2024
8.0.0-preview3 109 07/22/2024
8.0.0-preview2 112 07/22/2024
7.6.105 102 07/22/2024
7.6.104 108 07/22/2024
7.6.103 96 07/22/2024
7.6.102 109 07/22/2024
7.6.101 103 07/22/2024
7.6.100 114 07/22/2024
7.6.0 117 07/22/2024
7.6.0-preview1 108 07/22/2024
7.5.2 104 07/22/2024
7.5.1 95 06/21/2024
7.5.0 111 07/22/2024
7.4.0 104 07/22/2024
7.3.4 99 07/22/2024
7.3.3 106 07/22/2024
7.3.2 103 07/22/2024
7.3.1 105 07/22/2024
7.3.0 102 07/22/2024
7.3.0-beta3 113 07/22/2024
7.3.0-beta2 106 07/22/2024
7.3.0-beta1 116 07/22/2024
7.2.1 110 07/22/2024
7.2.0 109 07/22/2024
7.2.0-beta3 105 07/22/2024
7.2.0-beta2 113 07/22/2024
7.2.0-beta1 109 07/22/2024
7.1.1 102 07/22/2024
7.1.0 96 07/22/2024
7.1.0-beta1 99 07/22/2024
7.0.3 102 07/22/2024
7.0.2 98 07/22/2024
7.0.1 124 07/22/2024
7.0.0 104 07/22/2024
7.0.0-beta3 97 07/22/2024
7.0.0-beta2 102 07/22/2024
7.0.0-beta1 93 07/22/2024
6.4.1 119 07/22/2024
6.4.1-beta1 128 07/22/2024
6.4.0 106 07/22/2024
6.4.0-rc4 129 07/22/2024
6.4.0-rc3 104 07/22/2024
6.4.0-rc2 116 07/22/2024
6.4.0-rc1 116 07/22/2024
6.4.0-beta9 141 07/22/2024
6.4.0-beta8 137 07/22/2024
6.4.0-beta7 109 07/22/2024
6.4.0-beta6 115 07/22/2024
6.4.0-beta5 117 07/22/2024
6.4.0-beta4 115 07/22/2024
6.4.0-beta3 99 07/22/2024
6.4.0-beta2 115 07/22/2024
6.4.0-beta10 125 07/22/2024
6.4.0-beta1 94 07/22/2024
6.3.4-alpha 108 07/22/2024
6.3.3-alpha 99 07/22/2024
6.2.1 104 07/22/2024
6.2.1-beta1 102 07/22/2024
6.2.0 93 07/22/2024
6.2.0-beta1 110 07/22/2024
6.1.0 106 07/22/2024
6.0.2 96 07/22/2024
6.0.1 100 07/22/2024
6.0.0 114 07/22/2024
5.6.2 113 07/22/2024
5.6.1 111 07/22/2024
5.5.0 106 07/22/2024
5.4.0 114 07/22/2024
5.3.0 112 07/21/2024
5.2.0 109 07/22/2024
5.1.0 114 07/22/2024
5.0.0.1 110 07/22/2024
4.0.0.1 114 07/22/2024
4.0.0 116 07/22/2024
3.4.6 100 07/22/2024
3.4.0 100 07/22/2024
3.3.1 110 07/22/2024
3.2.0 123 07/22/2024
3.1.0 107 07/22/2024
3.0.0.1 94 07/22/2024
3.0.0 115 07/22/2024
2.0.0 96 07/22/2024
1.3.0 110 07/22/2024