public static System.Web.Mvc.MvcHtmlString AntiForgeryTokenForAjaxPost(this System.Web.Mvc.HtmlHelper helper)
{
var antiForgeryInputTag = helper.AntiForgeryToken().ToString();
// Above gets the following: <input name="__RequestVerificationToken" type="hidden" value="PnQE7R0MIBBAzC7SqtVvwrJpGbRvPgzWHo5dSyoSaZoabRjf9pCyzjujYBU_qKDJmwIOiPRDwBV1TNVdXFVgzAvN9_l2yt9-nf4Owif0qIDz7WRAmydVPIm6_pmJAI--wvvFQO7g0VvoFArFtAR2v6Ch1wmXCZ89v0-lNOGZLZc1" />
var removedStart = antiForgeryInputTag.Replace(@"<input name=""__RequestVerificationToken"" type=""hidden"" value=""", "");
var tokenValue = removedStart.Replace(@""" />", "");
if (antiForgeryInputTag == removedStart || removedStart == tokenValue)
{
throw new InvalidOperationException("Oops! The Html.AntiForgeryToken() method seems to return something I did not expect.");
}
return(new System.Web.Mvc.MvcHtmlString(string.Format(@"{0}:""{1}""", "__RequestVerificationToken", tokenValue)));
}