DependentValidation

DependentValidation is a netstandard2.0 library that extends the System.ComponentModel.DataAnnotations with conditional attributes based on another property of the validated object.

The new attributes are the following:

• RequiredIf
• RequiredIfEmpty
• RequiredIfFalse
• RequiredIfNot
• RequiredIfNotEmpty
• RequiredIfNotRegExMatch
• RequiredIfRegExMatch
• RequiredIfTrue
• RegularExpressionIf
• Is
• EqualTo
• GreaterThan
• GreaterThanOrEqualTo
• LessThan
• LessThanOrEqualTo
• NotEqualTo

Installation

DependentValidation is on NuGet

Install-Package DependentValidation

Minimum Requirements: .NET Standard 2.0.

Inside this project there is a small js file, dependentvalidation.unobstrusive.js that extend the jQuery Validation Plugin and the jQuery Unobtrusive Validation for unobstrusive client validation.

This project is based on foolproof, which I used extensively in my Asp.Net MVC projects.

Going forward developing projects with .Net Core, I felt the need of a Foolproof like library, but what I found is too much complex for my needs.

So I decided to try and give back something to the Open Source Community.