ValidationExtensions.ValidationMessageFor(TModel, TProperty) Method (HtmlHelper(TModel), Expression(Func(TModel, TProperty)), String)
Returns the HTML markup for a validation-error message for each data field that is represented by the specified expression, using the specified message.
Namespace: System.Web.Mvc.Html
Assembly: System.Web.Mvc (in System.Web.Mvc.dll)
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.
- validationMessage
- Type: System.String
The message to display if the specified field contains an error.
Return Value
Type: System.Web.Mvc.MvcHtmlStringIf 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) or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.108).
Show: