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ValidationExtensions.ValidationMessageFor<TModel, TProperty> Method (HtmlHelper<TModel>, Expression<Func<TModel, TProperty>>)

Returns the HTML markup for a validation-error message for each data field that is represented by the specified expression.

Namespace:  System.Web.Mvc.Html
Assembly:  System.Web.Mvc (in System.Web.Mvc.dll)

public static MvcHtmlString ValidationMessageFor<TModel, TProperty>(
	this HtmlHelper<TModel> htmlHelper,
	Expression<Func<TModel, TProperty>> expression
)

Type Parameters

TModel

The type of the model.

TProperty

The type of the property.

Parameters

htmlHelper
Type: System.Web.Mvc.HtmlHelper<TModel>
The HTML helper instance that this method extends.
expression
Type: System.Linq.Expressions.Expression<Func<TModel, TProperty>>
An expression that identifies the object that contains the properties to render.

Return Value

Type: System.Web.Mvc.MvcHtmlString
If the property or object is valid, an empty string; otherwise, a span element that contains an error message.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type HtmlHelper<TModel>. When you use instance method syntax to call this method, omit the first parameter. For more information, see b8020aae-374d-46a9-bcb7-8cc2390b93b6 or 175ce3ff-9bbf-4e64-8421-faeb81a0bb51.
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