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)

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[ExtensionAttribute]
public:
generic<typename TModel, typename TProperty>
static MvcHtmlString^ ValidationMessageFor(
	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 https://msdn.microsoft.com/en-us/library/bb384936(v=vs.108).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.108).aspx.
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