ChildActionExtensions.Action Method (HtmlHelper, String, RouteValueDictionary)

Invokes the specified child action method using the specified parameters and returns the result as an HTML string.

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


<ExtensionAttribute> _
Public Shared Function Action ( _
    htmlHelper As HtmlHelper, _
    actionName As String, _
    routeValues As RouteValueDictionary _
) As MvcHtmlString
Dim htmlHelper As HtmlHelper 
Dim actionName As String 
Dim routeValues As RouteValueDictionary 
Dim returnValue As MvcHtmlString 

returnValue = htmlHelper.Action(actionName, _
public static MvcHtmlString Action(
    this HtmlHelper htmlHelper,
    string actionName,
    RouteValueDictionary routeValues
static MvcHtmlString^ Action(
    HtmlHelper^ htmlHelper, 
    String^ actionName, 
    RouteValueDictionary^ routeValues
static member Action : 
        htmlHelper:HtmlHelper * 
        actionName:string * 
        routeValues:RouteValueDictionary -> MvcHtmlString
public static function Action(
    htmlHelper : HtmlHelper, 
    actionName : String, 
    routeValues : RouteValueDictionary
) : MvcHtmlString


  • actionName
    Type: System.String

    The name of the action method to invoke.

  • routeValues
    Type: System.Web.Routing.RouteValueDictionary

    A dictionary that contains the parameters for a route. You can use routeValues to provide the parameters that are bound to the action method parameters. The routeValues parameter is merged with the original route values and overrides them.

Return Value

Type: System.Web.Mvc.MvcHtmlString
The child action result as an HTML string.

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 or


Exception Condition

The htmlHelper parameter is nulla null reference (Nothing in Visual Basic).


The actionName parameter is nulla null reference (Nothing in Visual Basic) or empty.


The required virtual path data cannot be found.

See Also


ChildActionExtensions Class

Action Overload

System.Web.Mvc.Html Namespace