AjaxExtensions.BeginForm Method (AjaxHelper, String, String, RouteValueDictionary, AjaxOptions, IDictionary(Of String, Object))

Writes an opening <form> tag to the response.

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

<ExtensionAttribute> _
Public Shared Function BeginForm ( _
	ajaxHelper As AjaxHelper, _
	actionName As String, _
	controllerName As String, _
	routeValues As RouteValueDictionary, _
	ajaxOptions As AjaxOptions, _
	htmlAttributes As IDictionary(Of String, Object) _
) As MvcForm
Dim ajaxHelper As AjaxHelper 
Dim actionName As String 
Dim controllerName As String 
Dim routeValues As RouteValueDictionary 
Dim ajaxOptions As AjaxOptions 
Dim htmlAttributes As IDictionary(Of String, Object)
Dim returnValue As MvcForm 

returnValue = ajaxHelper.BeginForm(actionName, _
	controllerName, routeValues, ajaxOptions, _


Type: System.Web.Mvc.AjaxHelper

The AJAX helper.

Type: System.String

The name of the action method that will handle the request.

Type: System.String

The name of the controller.

Type: System.Web.Routing.RouteValueDictionary

An object that contains the parameters for a route.

Type: System.Web.Mvc.Ajax.AjaxOptions

An object that provides options for the asynchronous request.

Type: System.Collections.Generic.IDictionary(Of String, Object)

An object that contains the HTML attributes to set for the element.

Return Value

Type: System.Web.Mvc.Html.MvcForm
An opening <form> tag.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type AjaxHelper. When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.108).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.108).aspx.

You can use this method in a using block. In that case, the method renders the closing </form> tag at the end of the using block. The form is submitted asynchronously by using JavaScript.

The htmlAttributes parameter consists of an object that contains name/value pairs. The attributes that are specified in the name/value pairs depend on the HTML element that is being rendered. For example, for a form element, you might provide the following anonymous object:

New With { .id = "text1", .accept-charset="iso-8859-1" }