DomainValidation.NET 3.0.0

.NET 10.0

dotnet add package DomainValidation.NET --version 3.0.0

NuGet\Install-Package DomainValidation.NET -Version 3.0.0

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="DomainValidation.NET" Version="3.0.0" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="DomainValidation.NET" Version="3.0.0" />
                    

                            Directory.Packages.props

<PackageReference Include="DomainValidation.NET" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add DomainValidation.NET --version 3.0.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: DomainValidation.NET, 3.0.0"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package DomainValidation.NET@3.0.0

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=DomainValidation.NET&version=3.0.0
                    

                            Install as a Cake Addin

#tool nuget:?package=DomainValidation.NET&version=3.0.0
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Nuget GitHub GitHub contributors GitHub Workflow Status (with event)

Domain validation with a result object

This library provides a simple, consistent approach to domain validation using a Result object. The Result class encapsulates both the outcome of an operation and any associated validation errors.

When validation passes and the model is valid, result.IsSuccess is true and result.Value contains the valid model.
When validation fails, result.IsSuccess is false and result.Errors contains one or more Error instances describing what went wrong.

Example

Consider a Blog class with basic domain validation logic:

public class Blog
{
    private Blog(string title)
    {
        Title = title;
    }

    public static Result<Blog> Create(string title)
    {
        var errors = new List<Error>();

        if (string.IsNullOrEmpty(title))
        {
            return Result<Blog>.Failure("Title is mandatory");
        }

        if (title.Length < 3)
        {
            errors.Add(new Error("The minimum title length is 3 characters"));
        }

        if (title.Length > 40)
        {
            errors.Add(new Error("The maximum title length is 40 characters"));
        }

        if (errors.Any())
        {
            return Result<Blog>.Failure(errors.ToArray());
        }

        return new Blog(title);
    }

    public string Title { get; init; }
}

Creating an instance of Blog with a valid title returns a successful Result<Blog> containing the new instance. If the title is invalid, the result indicates failure and contains the corresponding error details.

Result<Blog> blog = Blog.Create("My awesome blog");

if (blog.IsSuccess)
{
    Console.WriteLine(blog.Value.Title);
}

blog = Blog.Create("");

if (!blog.IsSuccess)
{
    foreach (var error in blog.Errors)
    {
        Console.WriteLine(error);
    }
}

blog = Blog.Create("B");

if (!blog.IsSuccess)
{
    foreach (var error in blog.Errors)
    {
        Console.WriteLine(error);
    }
}

Contribution

You are very welcome to contribute by opening issues, submitting pull requests, or simply giving the project a ⭐ on GitHub if you find it useful.

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
3.0.0	300	12/25/2025
2.7.0	381	2/16/2025
2.6.0	267	2/6/2025
2.5.0	246	2/6/2025
2.4.1	255	2/6/2025
2.4.0	222	2/4/2025
2.3.0	257	2/3/2025
2.2.0	231	2/3/2025
2.1.0	269	1/31/2025
2.0.0	241	1/26/2025
1.1.0	317	8/1/2023
1.0.0	278	8/1/2023

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