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ValidationExtensions.ValidationSummary Method (HtmlHelper, String)

.NET Framework 4

Returns an unordered list (ul element) of validation messages that are in the ModelStateDictionary object.

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

public static MvcHtmlString ValidationSummary(
	this HtmlHelper htmlHelper,
	string message
)

Parameters

htmlHelper
Type: System.Web.Mvc.HtmlHelper
The HMTL helper instance that this method extends.
message
Type: System.String
The message to display if the specified field contains an error.

Return Value

Type: System.Web.Mvc.MvcHtmlString
A string that contains an unordered list (ul element) of validation messages.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type HtmlHelper. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

The ValidationSummary method displays a list of all validation messages on the page.

If the DefaultModelBinder instance cannot bind a form-field value to the model, the binder adds an error to the ModelState object. When the view is rendered, the validation messages and validation summary are displayed based on the Errors property of the ModelState object.

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