The required anti-forgery form field "RequestVerificationToken" is not present Solution

應用程式中發生伺服器錯誤。 

The required anti-forgery form field "__RequestVerificationToken" is not present.

解決方式：

在View 送出的Form頁面using處下方，要加入下面字眼

@Html.AntiForgeryToken()

(Solutions)

You have [ValidateAntiForgeryToken] attribute before your action. 

You should add @Html.AntiForgeryToken() in your form.

Example:

@using(Html.BeginForm())

{

     @Html.AntiForgeryToken()

     <input name="..." type="text" /> 

}