InputExtensions.HiddenFor<TModel, TProperty> Method (HtmlHelper<TModel>, Expression<Func<TModel, TProperty>>)

Článek
02/21/2011

Returns an HTML hidden input element for each property in the object that is represented by the specified expression.

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

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function HiddenFor(Of TModel, TProperty) ( _
    htmlHelper As HtmlHelper(Of TModel), _
    expression As Expression(Of Func(Of TModel, TProperty)) _
) As MvcHtmlString

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

[ExtensionAttribute]
public:
generic<typename TModel, typename TProperty>
static MvcHtmlString^ HiddenFor(
    HtmlHelper<TModel>^ htmlHelper, 
    Expression<Func<TModel, TProperty>^>^ expression
)

Type Parameters

TModel
The type of the model.

TProperty
The type of the value.

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
An input element whose type attribute is set to "hidden" for each property in the object that is represented by the expression.

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 Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Exceptions

Exception	Condition
ArgumentException	The expression parameter is null reference (Nothing in Visual Basic) or empty.

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