Class Validator<TRequest>

inherit from this base class to define your dto validators

HINT: validators are registered as singletons. i.e. the same validator instance is used to validate each request for best performance. hance, do not maintain state in your validators.

Inheritance
object
AbstractValidator<TRequest>
Validator<TRequest>
Implements
IValidator<TRequest>
IValidator
IEnumerable<IValidationRule>
Inherited Members
AbstractValidator<TRequest>.Validate(TRequest)
AbstractValidator<TRequest>.Validate(ValidationContext<TRequest>)
AbstractValidator<TRequest>.CreateDescriptor()
AbstractValidator<TRequest>.Include(IValidator<TRequest>)
AbstractValidator<TRequest>.GetEnumerator()
AbstractValidator<TRequest>.RaiseValidationException(ValidationContext<TRequest>, ValidationResult)
AbstractValidator<TRequest>.OnRuleAdded(IValidationRule<TRequest>)
AbstractValidator<TRequest>.CascadeMode
AbstractValidator<TRequest>.ClassLevelCascadeMode
AbstractValidator<TRequest>.RuleLevelCascadeMode
Namespace: FastEndpoints
Assembly: FastEndpoints.dll
Syntax
public abstract class Validator<TRequest> : AbstractValidator<TRequest>, IValidator<TRequest>, IValidator, IEnumerable<IValidationRule>, IEnumerable, IServiceResolverBase where TRequest : notnull
Type Parameters
Name Description
TRequest

the type of the request dto

Methods

CreateScope()

if you'd like to resolve scoped or transient services from the MS DI container, obtain a service scope from this method and dispose the scope when the work is complete.

<pre><code class="lang-csharp">using var scope = CreateScope();
var scopedService = scope.Resolve<MyService>();</code></pre>
Declaration
public IServiceScope CreateScope()
Returns
Type Description
IServiceScope

PreValidate(ValidationContext<TRequest>, ValidationResult)

Determines if validation should occur and provides a means to modify the context and ValidationResult prior to execution. If this method returns false, then the ValidationResult is immediately returned from Validate/ValidateAsync.

Declaration
protected override bool PreValidate(ValidationContext<TRequest> context, ValidationResult result)
Parameters
Type Name Description
ValidationContext<TRequest> context
ValidationResult result
Returns
Type Description
bool
Overrides
FluentValidation.AbstractValidator<TRequest>.PreValidate(FluentValidation.ValidationContext<TRequest>, FluentValidation.Results.ValidationResult)

Resolve(Type)

resolve an instance for the given type from the dependency injection container. will throw if unresolvable.

Declaration
public object Resolve(Type typeOfService)
Parameters
Type Name Description
Type typeOfService

the type of the service to resolve
Returns
Type Description
object
Exceptions
Type Condition
InvalidOperationException

Thrown if requested service cannot be resolved

Resolve(Type, string)

resolve an instance for the given type from the dependency injection container. will throw if unresolvable.

Declaration
public object Resolve(Type typeOfService, string keyName)
Parameters
Type Name Description
Type typeOfService

the type of the service to resolve
string keyName

the key name for resolving keyed service
Returns
Type Description
object
Exceptions
Type Condition
InvalidOperationException

Thrown if requested service cannot be resolved

Resolve<TService>()

resolve an instance for the given type from the dependency injection container. will throw if unresolvable.

Declaration
public TService Resolve<TService>() where TService : class
Returns
Type Description
TService
Type Parameters
Name Description
TService

the type of the service to resolve
Exceptions
Type Condition
InvalidOperationException

Thrown if requested service cannot be resolved

Resolve<TService>(string)

resolve an instance for the given type from the dependency injection container. will throw if unresolvable.

Declaration
public TService Resolve<TService>(string keyName) where TService : class
Parameters
Type Name Description
string keyName

the key name for resolving keyed service
Returns
Type Description
TService
Type Parameters
Name Description
TService

the type of the service to resolve
Exceptions
Type Condition
InvalidOperationException

Thrown if requested service cannot be resolved

TryResolve(Type)

try to resolve an instance for the given type from the dependency injection container. will return null if unresolvable.

Declaration
public object? TryResolve(Type typeOfService)
Parameters
Type Name Description
Type typeOfService

the type of the service to resolve
Returns
Type Description
object

TryResolve(Type, string)

try to resolve an instance for the given type from the dependency injection container. will return null if unresolvable.

Declaration
public object? TryResolve(Type typeOfService, string keyName)
Parameters
Type Name Description
Type typeOfService

the type of the service to resolve
string keyName

the key name for resolving keyed service
Returns
Type Description
object

TryResolve<TService>()

try to resolve an instance for the given type from the dependency injection container. will return null if unresolvable.

Declaration
public TService? TryResolve<TService>() where TService : class
Returns
Type Description
TService
Type Parameters
Name Description
TService

the type of the service to resolve

TryResolve<TService>(string)

try to resolve an instance for the given type from the dependency injection container. will return null if unresolvable.

Declaration
public TService? TryResolve<TService>(string keyName) where TService : class
Parameters
Type Name Description
string keyName

the key name for resolving keyed service
Returns
Type Description
TService
Type Parameters
Name Description
TService

the type of the service to resolve

Implements

FluentValidation.IValidator<T>
FluentValidation.IValidator