ModelStateDictionaryExtensions.AddModelError Method

Definition

Namespace:

Microsoft.AspNetCore.Mvc.ModelBinding

Assembly:

Microsoft.AspNetCore.Mvc.ViewFeatures.dll

Package:

Microsoft.AspNetCore.App.Ref v9.0.0

Overloads

AddModelError<TModel>(ModelStateDictionary, Expression<Func<TModel,Object>>, String)	Adds the specified errorMessage to the Errors instance that is associated with the specified expression. If the maximum number of allowed errors has already been recorded, ensures that a TooManyModelErrorsException exception is recorded instead.
AddModelError<TModel>(ModelStateDictionary, Expression<Func<TModel,Object>>, Exception, ModelMetadata)	Adds the specified exception to the Errors instance that is associated with the specified expression. If the maximum number of allowed errors has already been recorded, ensures that a TooManyModelErrorsException exception is recorded instead.

AddModelError<TModel>(ModelStateDictionary, Expression<Func<TModel,Object>>, String)

Adds the specified errorMessage to the Errors instance that is associated with the specified expression. If the maximum number of allowed errors has already been recorded, ensures that a TooManyModelErrorsException exception is recorded instead.

public:
generic <typename TModel>
[System::Runtime::CompilerServices::Extension]
 static void AddModelError(Microsoft::AspNetCore::Mvc::ModelBinding::ModelStateDictionary ^ modelState, System::Linq::Expressions::Expression<Func<TModel, System::Object ^> ^> ^ expression, System::String ^ errorMessage);

public static void AddModelError<TModel> (this Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary modelState, System.Linq.Expressions.Expression<Func<TModel,object>> expression, string errorMessage);

static member AddModelError : Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary * System.Linq.Expressions.Expression<Func<'Model, obj>> * string -> unit

<Extension()>
Public Sub AddModelError(Of TModel) (modelState As ModelStateDictionary, expression As Expression(Of Func(Of TModel, Object)), errorMessage As String)

Type Parameters

TModel

The type of the model.

Parameters

modelState

ModelStateDictionary

The ModelStateDictionary instance this method extends.

expression

Expression<Func<TModel,Object>>

An expression to be evaluated against an item in the current model.

errorMessage

String

The error message to add.

AddModelError<TModel>(ModelStateDictionary, Expression<Func<TModel,Object>>, Exception, ModelMetadata)

Adds the specified exception to the Errors instance that is associated with the specified expression. If the maximum number of allowed errors has already been recorded, ensures that a TooManyModelErrorsException exception is recorded instead.

public:
generic <typename TModel>
[System::Runtime::CompilerServices::Extension]
 static void AddModelError(Microsoft::AspNetCore::Mvc::ModelBinding::ModelStateDictionary ^ modelState, System::Linq::Expressions::Expression<Func<TModel, System::Object ^> ^> ^ expression, Exception ^ exception, Microsoft::AspNetCore::Mvc::ModelBinding::ModelMetadata ^ metadata);

public static void AddModelError<TModel> (this Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary modelState, System.Linq.Expressions.Expression<Func<TModel,object>> expression, Exception exception, Microsoft.AspNetCore.Mvc.ModelBinding.ModelMetadata metadata);

static member AddModelError : Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary * System.Linq.Expressions.Expression<Func<'Model, obj>> * Exception * Microsoft.AspNetCore.Mvc.ModelBinding.ModelMetadata -> unit

<Extension()>
Public Sub AddModelError(Of TModel) (modelState As ModelStateDictionary, expression As Expression(Of Func(Of TModel, Object)), exception As Exception, metadata As ModelMetadata)

Type Parameters

TModel

The type of the model.

Parameters

modelState

ModelStateDictionary

The ModelStateDictionary instance this method extends.

expression

Expression<Func<TModel,Object>>

An expression to be evaluated against an item in the current model.

exception

Exception

The Exception to add.

metadata

ModelMetadata

The ModelMetadata associated with the model.