ItemsValidator 2026.4.3

dotnet add package ItemsValidator --version 2026.4.3
                    
NuGet\Install-Package ItemsValidator -Version 2026.4.3
                    
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="ItemsValidator" Version="2026.4.3" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="ItemsValidator" Version="2026.4.3" />
                    
Directory.Packages.props
<PackageReference Include="ItemsValidator" />
                    
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 ItemsValidator --version 2026.4.3
                    
#r "nuget: ItemsValidator, 2026.4.3"
                    
#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 ItemsValidator@2026.4.3
                    
#: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=ItemsValidator&version=2026.4.3
                    
Install as a Cake Addin
#tool nuget:?package=ItemsValidator&version=2026.4.3
                    
Install as a Cake Tool

Validation methods in descendant classes should be marked with the [ValidationRule] attribute, e.g.:

[ValidationRule] private ValidationIssue? CheckSomething(T obj) { ... }

[ValidationRule(true)] // - true when rule is warning only private async Task<ValidationIssue?> CheckSomethingAsync(T obj) { await ... return ...; }

NOTE!!! If the derived class has only asynchronous or both asynchronous and synchronous methods, you must use the asynchronous methods: Validate/ValidateSingle for validation. If the methods are only synchronous, you can use the synchronous methods: Validate/ValidateSingle for validation. NOTE!!! Methods in the derived class cannot be static, because ValidatorBase will not load them! (it looks for instance methods, not static ones.)

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
2026.4.3 81 4/3/2026
1.0.0 99 4/3/2026