ModelStateDictionaryExtensions Class¶

Inheritance Hierarchy¶

• System.Object
• Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionaryExtensions

Syntax¶

public class ModelStateDictionaryExtensions

class Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionaryExtensions

Methods¶

AddModelError<TModel>(Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary, System.Linq.Expressions.Expression<System.Func<TModel, System.Object>>, System.Exception, Microsoft.AspNetCore.Mvc.ModelBinding.ModelMetadata)¶

Adds the specified <em>exception</em> to the Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateEntry.Errors instance that is associated with the specified <em>expression</em>.

Arguments:

modelState (Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary) – The Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary instance this method extends. expression (System.Linq.Expressions.Expression<System.Func<TModel, System.Object>>) – An expression to be evaluated against an item in the current model. exception (System.Exception) – The System.Exception to add. metadata (Microsoft.AspNetCore.Mvc.ModelBinding.ModelMetadata) – The Microsoft.AspNetCore.Mvc.ModelBinding.ModelMetadata associated with the model.

public static void AddModelError<TModel>(this ModelStateDictionary modelState, Expression<Func<TModel, object>> expression, Exception exception, ModelMetadata metadata)

AddModelError<TModel>(Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary, System.Linq.Expressions.Expression<System.Func<TModel, System.Object>>, System.String)

Adds the specified <em>errorMessage</em> to the Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateEntry.Errors instance that is associated with the specified <em>expression</em>.

Arguments:	modelState (Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary) – The Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary instance this method extends. expression (System.Linq.Expressions.Expression<System.Func<TModel, System.Object>>) – An expression to be evaluated against an item in the current model. errorMessage (System.String) – The error message to add.

public static void AddModelError<TModel>(this ModelStateDictionary modelState, Expression<Func<TModel, object>> expression, string errorMessage)

RemoveAll<TModel>(Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary, System.Linq.Expressions.Expression<System.Func<TModel, System.Object>>)¶

Removes all the entries for the specified <em>expression</em> from the Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary.

Arguments:	modelState (Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary) – The Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary instance this method extends. expression (System.Linq.Expressions.Expression<System.Func<TModel, System.Object>>) – An expression to be evaluated against an item in the current model.

public static void RemoveAll<TModel>(this ModelStateDictionary modelState, Expression<Func<TModel, object>> expression)

Remove<TModel>(Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary, System.Linq.Expressions.Expression<System.Func<TModel, System.Object>>)¶

Removes the specified <em>expression</em> from the Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary.

Arguments:	modelState (Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary) – The Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary instance this method extends. expression (System.Linq.Expressions.Expression<System.Func<TModel, System.Object>>) – An expression to be evaluated against an item in the current model.
Return type:	System.Boolean
Returns:	true if the element is successfully removed; otherwise, false. This method also returns false if <em>expression</em> was not found in the model-state dictionary.

public static bool Remove<TModel>(this ModelStateDictionary modelState, Expression<Func<TModel, object>> expression)