TooManyDataAnnotations 1.0.1

.NET 8.0

dotnet add package TooManyDataAnnotations --version 1.0.1

NuGet\Install-Package TooManyDataAnnotations -Version 1.0.1

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="TooManyDataAnnotations" Version="1.0.1" />

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

<PackageVersion Include="TooManyDataAnnotations" Version="1.0.1" />
                    

                            Directory.Packages.props

<PackageReference Include="TooManyDataAnnotations" />
                    

                            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 TooManyDataAnnotations --version 1.0.1

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

#r "nuget: TooManyDataAnnotations, 1.0.1"

#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 TooManyDataAnnotations@1.0.1

#: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=TooManyDataAnnotations&version=1.0.1
                    

                            Install as a Cake Addin

#tool nuget:?package=TooManyDataAnnotations&version=1.0.1
                    

                            Install as a Cake Tool

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

TooManyDataAnnotations

Extending .NET's System.ComponentModel.DataAnnotations with powerful, semantic validation attributes.

⚠️ Early adopters wanted. Newly published, seeking real-world feedback. 899 tests covering edge cases. Report issues here.

🚀 Quick Start

Install the package:

dotnet add package TooManyDataAnnotations

Add validation to your models:

using System.ComponentModel.DataAnnotations;
using TooManyDataAnnotations.Aot.Network;
using TooManyDataAnnotations.Aot.Formatting;
using TooManyDataAnnotations.Aot.Text;
using TooManyDataAnnotations.Classes;

public class ProductDto
{
    [IPv4]
    public string? ServerIp { get; set; }

    [SemanticVersion]
    public string? Version { get; set; }

    [Required]
    [HexColor]
    public string? ThemeColor { get; set; }
}

[ExactlyOneOf(nameof(Email), nameof(Phone))]
public class ContactDto
{
    public string? Email { get; set; }
    public string? Phone { get; set; }
}

📦 Two Packages Available

TooManyDataAnnotations (this package)

Everything included — AOT-safe attributes + reflection-based validators.

Use this if you don't need Native AOT publishing.

TooManyDataAnnotations.Aot

AOT-only subset. Zero reflection. Use when publishing Native AOT applications.

dotnet add package TooManyDataAnnotations.Aot

💡 Tip: Installing TooManyDataAnnotations automatically includes TooManyDataAnnotations.Aot as a dependency.

✨ Supported Validators

AOT-Safe (no reflection)

Category	Attributes
Identifiers	`[Guid]`, `[GuidV7]`, `[Uri]`
Network	`[IPv4]`, `[IPv6]`, `[MacAddress]`, `[PortNumber]`
Text	`[HexColor]`, `[Slug]`, `[WebUrl]`
Formatting	`[IsoDateTime]`, `[SemanticVersion]`
Logical	`[IsTrue]`, `[IsFalse]`

Reflection-Based (full package only)

Category	Attributes
Logical	`[MinimumTrueValues]`, `[AtLeastOneTrue]`, `[ExactlyNTrue]`, `[ExactlyOneTrue]`
Classes	`[ExactlyNOf]`, `[ExactlyOneOf]`, `[RequiredAtLeastN]`, `[RequiredAtLeastOne]`
Temporal	`[StartDate]`, `[EndDate]`

🧪 Testing

899 unit tests covering all attributes — valid/invalid inputs, edge cases, nullable types, custom error messages, and integration tests with Validator.TryValidateObject.

dotnet test

🔗 Links

Solution README — Full project documentation
AOT Package — AOT-only subset

📄 License

Product	Compatible and additional computed target framework versions.
.NET	net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 is compatible. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. 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.

Product

.NET

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- TooManyDataAnnotations.Aot (>= 1.0.1)
net8.0
- TooManyDataAnnotations.Aot (>= 1.0.1)
net9.0
- TooManyDataAnnotations.Aot (>= 1.0.1)

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
1.0.1	104	8/2/2026
1.0.0	106	7/29/2026
0.1.0	101	7/21/2026