无法转换类型'System.Security.Principal.WindowsIdentity'的对象，以自定义类

问题描述

使用的WebForms在VS2013在C＃中，同时为ASP .NET 4，我正在实施已经通过了我的所有应用程序中使用自定义的安全对象。从VS2010到VS2013的提升，我来到这个错误窃听了我这么多......

While developing in C# for ASP .net 4 in VS2013 using WebForms, I was implementing a custom security object that has been used through out of all my applications. With the upgrading from VS2010 to VS2013, I came to this error that bugged me so much....

无法投类型的对象
  System.Security.Principal.WindowsIdentity到类型
  CustomSecurity.BusinessObject.EmployeeIdentity

和为code的位置如下：

And the code location as follows:

public partial class _Default : System.Web.UI.Page  
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //This is where it fails 
        EmployeeIdentity employeeIdentity = (EmployeeIdentity)HttpContext.Current.User.Identity;
    } 
}

code的这条线在VS2010工作，但在VS2013没有工作。在code编译，但在运行时给了我这个错误。

This line of code worked in VS2010 but didn't work in VS2013. The code compiles but gives me this error during run time.

事情到目前为止，我曾尝试：

1. 将转换为CustomSecurity.BusinessObject.EmployeeIdentity .NET 4的组装


2. 改变code使用Page.User，我仍然得到同样的错误


3. 阅读StackOverflow的其他职位，在找到答案没有运气....

我的问题：
什么是可以解决我的问题其他建议？

My Question:What are other suggestions that may resolve my issue?

推荐答案

所以，从VS2010转换code到VS2013，我需要改变是添加以下到Web.config：

So from converting the code from VS2010 to VS2013, the changes I need was to add the following to the Web.config:

<system.webServer>
    <modules>
        <!-- Add a Custom Authentication module  THIS NEEDS TO BE ADDED FOR IIS8 + .NET 4 -->
        <add name="DHAAuthenticationModule" type=" DHA.CustomSecurity.BusinessObject.DHAAuthenticationModule, DHA.CustomSecurity.BusinessObject"/>
    </modules>
</system.webServer>

我假设的原因是是Web服务器需要了解对象的定义以及....
这个固定我的错误，我遇到过。这真的很特殊，我猜。

The reason I am assuming is be the webServer needs to understand object definitions as well.... This fixed my error that I encountered. It was really specific I guess.

在这个有什么想法？

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