TextAreaExtensions.TextAreaFor<TModel, TProperty> Method (HtmlHelper<TModel>, Expression<Func<TModel, TProperty>>, Int32, Int32, Object)

项目
02/21/2011

Returns an HTML textarea element for each property in the object that is represented by the specified expression using the specified HTML attributes and the number of rows and columns.

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

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function TextAreaFor(Of TModel, TProperty) ( _
    htmlHelper As HtmlHelper(Of TModel), _
    expression As Expression(Of Func(Of TModel, TProperty)), _
    rows As Integer, _
    columns As Integer, _
    htmlAttributes As Object _
) As MvcHtmlString

public static MvcHtmlString TextAreaFor<TModel, TProperty>(
    this HtmlHelper<TModel> htmlHelper,
    Expression<Func<TModel, TProperty>> expression,
    int rows,
    int columns,
    Object htmlAttributes
)

[ExtensionAttribute]
public:
generic<typename TModel, typename TProperty>
static MvcHtmlString^ TextAreaFor(
    HtmlHelper<TModel>^ htmlHelper, 
    Expression<Func<TModel, TProperty>^>^ expression, 
    int rows, 
    int columns, 
    Object^ htmlAttributes
)

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.

rows
Type: System.Int32
The number of rows.

columns
Type: System.Int32
The number of columns.

htmlAttributes
Type: System.Object
An object that contains the HTML attributes to set for the element.

Return Value

Type: System.Web.Mvc.MvcHtmlString
An HTML textarea element 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
ArgumentNullException	The expression parameter is null reference (Nothing in Visual Basic).

通过