System.Web.Mvc.AjaxHelper不包含'BeginForm

的定義System.Web.Mvc.AjaxHelper不包含'BeginForm的定義我在我的mvc3項目中出現此錯誤，請幫我解決此問題System.Web.Mvc.AjaxHelper不包含'BeginForm

這裏是我的代碼：

@{ 
    ViewBag.Title = "Register"; 
    Layout = "~/Views/Shared/_MyLayout.cshtml"; 
} 
@model FoodMart.Models.AccountModel 
@using (Ajax.BeginForm("Register", new AjaxOptions { UpdateTargetId = "result" })) 
{ 
<div id="result" style="width:800px">  
<fieldset style="width:100%"> 
<legend><span style="font-size:larger; color:Green; font-family:Arial">Register Here</span></legend> 
<table style="width:100%"> 
<tr> 
<td>@Html.LabelFor(m => m.users.FirstName,"Enter First Name")</td> 
<td>@Html.TextBoxFor(m => m.users.FirstName, new { style = "width:150px" })</td> 
<td><span style="font-size:medium; color:Green;">@Html.ValidationMessageFor(m=>m.users.FirstName)</span></td> 
</tr> 
<tr> 
<td>@Html.LabelFor(m => m.users.Landline)</td> 
<td>@Html.TextBoxFor(m => m.users.Landline, new { style = "width:150px" })</td> 

</tr> 

<tr> 
<td><input type="submit" value="Register" /></td> 
<td></td> 
</tr> 

</table> 
</fieldset> 
</div>  
}

來源

2012-12-15 Akshay Choudhary

這很可能會在你的web.config一個錯誤，但它不可能告訴沒有任何代碼或標記任何 –