FluentValidation 8.1.0-preview2

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
 67
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
 61
FluentValidation.DependencyInjectionExtensions
Dependency injection extensions for FluentValidation
 61
FluentValidation.AspNetCore
AspNetCore integration for FluentValidation
 60
FluentValidation.DependencyInjectionExtensions
Dependenecy injection extensions for FluentValidation
 60

FluentValidation 8 is a major release. Please read the upgrade notes at https://fluentvalidation.net/upgrading-to-8 Changes in 8.1: * Add format support in message placeholders. * Added support for overriding indexers for collection rules. * Allow error codes to be used to override localization key in the Language Manager. * Additional error details are now shown in the ShouldNotHaveValidationErrorFor test extension. * Conditions defined with root-level When/WhenAsync/Unless/UnlessAsync are now only executed once (instead of once for each rule). * Support Otherwise method chained from root-level When/WhenAsync/Unless/UnlessAsync. * Minor wording changes to default English error messages. Changes in 8.0: * Support validating only specific properties by path. * Added OnFailure method * Deprecated RuleFor(..).SetCollectionValidator in favour of RuleForEach(...).SetValidator * IStringSource.GetString now takes a validation context instead of a model instance. * Introduce PropertyValidatorOptions in order to clean up the IPropretyValidator interface. * Moved the legacy ValidatorAttribute and AttributedValidatorFactory into a separate FluentValidation.Attributes package. * Remove the pre-7.0 localization mechanism * Remove the pre-7.0 methods for custom validation * Removed many other deprecated methods Full release notes can be found at https://github.com/JeremySkinner/FluentValidation/blob/master/Changelog.txt

.NET Framework 4.5

.NET Standard 2.0

.NET Standard 1.6

.NET Standard 1.1

Version Downloads Last updated
12.0.0 25 05/05/2025
12.0.0-preview1 34 01/06/2025
11.11.0 39 11/20/2024
11.10.0 41 09/16/2024
11.9.2 44 06/15/2024
11.9.1 47 05/10/2024
11.9.0 51 01/08/2024
11.8.1 51 11/25/2023
11.8.0 49 10/19/2023
11.7.1 52 08/28/2023
11.7.0 51 08/22/2023
11.6.0 50 08/11/2023
11.5.2 52 07/18/2023
11.5.1 42 08/08/2023
11.5.0 48 08/20/2023
11.4.0 48 05/17/2023
11.3.0 50 08/04/2023
11.2.2 52 10/25/2022
11.2.1 50 10/08/2022
11.2.0 52 12/19/2022
11.1.1 43 07/06/2023
11.1.0 53 07/11/2022
11.0.3 56 04/22/2023
11.0.2 56 03/29/2023
11.0.1 57 01/15/2023
11.0.0 45 12/28/2022
10.4.0 57 12/16/2022
10.3.6 51 04/03/2023
10.3.5 44 08/06/2023
10.3.4 54 03/31/2023
10.3.3 50 06/16/2023
10.3.1 55 05/13/2023
10.3.0 54 11/18/2022
10.2.3 52 05/06/2023
10.2.2 52 05/05/2023
10.2.1 49 12/17/2022
10.2.0 51 12/12/2022
10.1.0 51 11/24/2022
10.0.4 52 11/08/2022
9.5.4 54 04/21/2023
9.5.3 58 05/16/2023
9.5.2 59 06/15/2023
9.5.1 53 12/27/2022
9.5.0 56 11/08/2022
9.4.0 60 11/08/2022
9.3.0 61 12/14/2022
9.3.0-preview3 52 03/29/2023
9.3.0-preview2 50 01/27/2023
9.3.0-preview1 48 12/16/2022
9.2.2 51 07/29/2023
9.2.1 66 12/22/2022
9.2.0 46 08/12/2023
9.1.3 51 04/01/2023
9.1.2 49 11/26/2022
9.1.1 51 07/01/2023
9.1.0 56 05/02/2023
9.0.1 48 10/28/2022
9.0.0-preview5 46 03/18/2023
9.0.0-preview4 47 08/20/2023
9.0.0-preview3 48 02/26/2023
9.0.0-preview2 51 03/26/2023
9.0.0-preview1 46 11/12/2022
8.6.3 51 12/20/2022
8.6.2 54 05/07/2023
8.6.1 47 11/10/2022
8.6.0 55 11/12/2022
8.5.1 50 12/29/2022
8.5.0 52 12/24/2022
8.5.0-preview5 51 03/29/2023
8.5.0-preview4 49 02/04/2023
8.5.0-preview3 47 02/15/2023
8.5.0-preview2 56 04/15/2023
8.5.0-preview1 50 02/20/2023
8.4.0 52 11/18/2022
8.3.0 55 12/14/2022
8.2.3 52 11/27/2022
8.2.2 48 05/14/2023
8.2.1 60 08/27/2022
8.2.0 56 11/10/2022
8.1.3 54 11/23/2022
8.1.2 56 11/21/2022
8.1.1 56 04/18/2023
8.1.0 48 11/21/2022
8.1.0-preview2 48 01/14/2023
8.1.0-preview1 48 04/08/2023
8.0.101 45 05/17/2023
8.0.100 47 11/22/2022
8.0.0 47 11/15/2022
8.0.0-rc1 44 09/28/2023
8.0.0-preview4 46 08/10/2023
8.0.0-preview3 48 04/14/2023
8.0.0-preview2 49 11/14/2022
7.6.105 49 11/03/2022
7.6.104 53 05/02/2023
7.6.103 46 07/22/2023
7.6.102 54 11/09/2022
7.6.101 51 07/07/2023
7.6.100 53 04/09/2023
7.6.0 59 02/13/2023
7.6.0-preview1 61 04/02/2023
7.5.2 51 05/15/2023
7.5.1 52 11/23/2022
7.5.0 57 11/12/2022
7.4.0 57 11/18/2022
7.3.4 55 11/11/2022
7.3.3 54 11/07/2022
7.3.2 51 08/07/2023
7.3.1 53 08/04/2023
7.3.0 52 05/17/2023
7.3.0-beta3 39 08/05/2023
7.3.0-beta2 45 08/16/2023
7.3.0-beta1 47 08/20/2023
7.2.1 53 01/16/2023
7.2.0 54 11/21/2022
7.2.0-beta3 45 08/09/2023
7.2.0-beta2 50 08/06/2023
7.2.0-beta1 58 11/25/2022
7.1.1 51 10/25/2022
7.1.0 50 05/17/2023
7.1.0-beta1 45 09/23/2023
7.0.3 55 11/21/2022
7.0.2 49 11/09/2022
7.0.1 58 11/27/2022
7.0.0 49 11/13/2022
7.0.0-beta3 44 07/05/2023
7.0.0-beta2 41 07/30/2023
7.0.0-beta1 51 08/15/2023
6.4.1 41 07/15/2023
6.4.1-beta1 51 08/15/2023
6.4.0 48 04/09/2023
6.4.0-rc4 49 08/16/2023
6.4.0-rc3 51 08/12/2023
6.4.0-rc2 49 07/08/2023
6.4.0-rc1 44 08/02/2023
6.4.0-beta9 44 05/19/2023
6.4.0-beta8 48 08/16/2023
6.4.0-beta7 46 08/09/2023
6.4.0-beta6 55 08/06/2023
6.4.0-beta5 50 08/10/2023
6.4.0-beta4 45 08/15/2023
6.4.0-beta3 45 08/10/2023
6.4.0-beta2 48 08/07/2023
6.4.0-beta10 54 06/21/2023
6.4.0-beta1 51 08/07/2023
6.3.4-alpha 48 02/20/2023
6.3.3-alpha 49 04/30/2023
6.2.1 50 12/22/2022
6.2.1-beta1 45 08/06/2023
6.2.0 60 11/28/2022
6.2.0-beta1 42 11/17/2022
6.1.0 48 08/05/2023
6.0.2 47 12/31/2022
6.0.1 56 11/28/2022
6.0.0 51 11/20/2022
5.6.2 52 04/29/2023
5.6.1 49 12/20/2022
5.5.0 52 11/16/2022
5.4.0 53 02/10/2023
5.3.0 49 11/17/2022
5.2.0 54 12/02/2022
5.1.0 49 12/29/2022
5.0.0.1 44 12/31/2022
4.0.0.1 55 12/14/2022
4.0.0 51 11/28/2022
3.4.6 47 11/06/2022
3.4.0 48 11/12/2022
3.3.1 50 10/28/2022
3.2.0 55 03/11/2023
3.1.0 41 04/06/2023
3.0.0.1 51 12/13/2022
3.0.0 59 04/01/2023
2.0.0 48 12/21/2022
1.3.0 44 05/07/2023