Validation samples

Validation has separate console and ASP.NET Core sample projects. Each runnable choice owns its description on its Sample or Startup class; Program.cs only selects which one to execute.

Core validation

Run the console project:

dotnet run --project validation/samples/Valiant.Validation.Samples

Select one delegate in Program.cs:

Delegate	Demonstrates	Source
Basic.Sample.RunAsync	A minimal fluent validator, generated registration, validation, and failure output	Basic
AttributeValidation.Sample.RunAsync	Validation attributes on the model with the generated validator contract	AttributeValidation
DependencyInjection.Sample.RunAsync	Generated registrations, configurable lifetime and defaults, concrete non-default validators, property validators, and metadata providers	DependencyInjection
SyncAndAsyncValidation.Sample.RunAsync	Sync and async APIs, boolean helpers, and the guard against synchronously invoking an asynchronous validator	SyncAndAsyncValidation
Severity.Sample.RunAsync	Error, warning, and information severities, including valid warning-only and information-only results	Severity
CompositionAndPaths.Sample.RunAsync	Whole-model composition, reusable property validators, child contexts, collection items, and nested/indexed paths	CompositionAndPaths
FailureHandling.Sample.RunAsync	Per-property fail-fast behavior, result helpers, and ThrowIfFailed()	FailureHandling
ControlFlowAndCollections.Sample.RunAsync	Collection and dictionary rules, conditions, switches, indexed validation, and native loops	ControlFlowAndCollections

The Catalog folder is shared support code for the advanced scenarios, not an additional selectable sample.

ASP.NET Core validation

Run the web project:

dotnet run --project validation/samples/Valiant.Validation.AspNetCore.Samples

Select one startup in Program.cs:

Startup	Demonstrates	Source
MinimalApi.Startup	Typed and all-parameter Minimal API filters that reject invalid requests before the handler runs	MinimalApi
Mvc.Startup	Automatic MVC validation without a validator dependency or manual validation branch in the controller	Mvc
ProblemDetails.Startup	Manual validation converted to HTTP and MVC validation problem-details responses	ProblemDetails
OpenApi.Startup	Generated Valiant validation metadata projected into the application's OpenAPI document	OpenApi

The Orders folder contains the shared request models and validator; it is not a startup choice.

The web scenarios are also exercised through WebApplicationFactory, so the sampled registration and HTTP behavior stay covered by the validation test project. See ASP.NET Core and OpenAPI for consumer setup.