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ChildActionExtensions.Action Method (HtmlHelper, String, String)

.NET Framework 4

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

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

public static MvcHtmlString Action(
	this HtmlHelper htmlHelper,
	string actionName,
	string controllerName
)

Parameters

htmlHelper
Type: System.Web.Mvc.HtmlHelper
The HTML helper instance that this method extends.
actionName
Type: System.String
The name of the action method to invoke.
controllerName
Type: System.String
The name of the controller that contains the action method.

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

ExceptionCondition
ArgumentNullException

The htmlHelper parameter is null.

ArgumentException

The actionName parameter is null or empty.

InvalidOperationException

The required virtual path data cannot be found.

The following example shows how to call the Action helper method in markup and how to pass to it the name of the action method and controller that renders the child view.

<%= Html.Action("ChildList", "Home") %>

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