System.ComponentModel.Annotations
Provides attributes that are used to define metadata for objects used as data sources. Commonly Used Types: System.ComponentModel.DataAnnotations.ValidationResult System.ComponentModel.DataAnnotations.IValidatableObject System.ComponentModel.DataAnnotations.ValidationAttribute System.ComponentModel.DataAnnotations.RequiredAttribute System.ComponentModel.DataAnnotations.StringLengthAttribute System.ComponentModel.DataAnnotations.DisplayAttribute System.ComponentModel.DataAnnotations.RegularExpressionAttribute System.ComponentModel.DataAnnotations.DataTypeAttribute System.ComponentModel.DataAnnotations.RangeAttribute System.ComponentModel.DataAnnotations.KeyAttribute When using NuGet 3.x this package requires at least version 3.4.
Install
dotnet add package System.ComponentModel.Annotations --version 5.0.0-preview.3.20214.6
Install-Package System.ComponentModel.Annotations -Version 5.0.0-preview.3.20214.6
<PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0-preview.3.20214.6" />
Frameworks
Dependencies
Adoption guide
A verified publisher signal is available. Assess fit from the package's supported frameworks, license and dependency graph rather than popularity alone.
This version is marked prerelease. Validate its API and upgrade path before production use.
Compatibility metadata lists 17 target frameworks; confirm the exact target used by your application.
How to read this guidance
Sources: published NuGet v3 registry metadata and explicit NuBrowse editorial guides. Refresh: package metadata is refreshed from NuGet when the page loads. Limit: this is not a security, legal or compatibility guarantee; validate the selected version in your project.
Useful next steps
Move from package metadata to a concrete selection or review workflow.