如何确定（优雅），如果在C＃WinForms应用程序需要代理认证 [英] How do I determine (elegantly) if proxy authentication is required in C# winforms app

问题描述

我的用例是这样的，我想调出到Web服务，如果我在代理服务器要求身份验证我想只是使用默认凭据...

My use case is this, I want to call out to a webservice and if I am behind a proxy server that requires authentication I want to just use the default credentials...

  WebRequest.DefaultWebProxy.Credentials = CredentialCache.DefaultCredentials;

否则我就只是简单地拨打电话，这将是非常好的，以确定是否需要身份验证了前面，而不是处理异常后，我尝试拨打电话。

Otherwise I'll just simply make the call, It would be very nice to determine if the auth is required up front, rather than handle the exception after I attempt to make the call.

想法？

推荐答案

System.Net.WebProxy 有一个叫做物业 UseDefaultCredentials 的可能的是你想要的（但我要在这里承认有点无知）。相关文件的链接这里。

System.Net.WebProxy has a property called UseDefaultCredentials that may be what you want (but I have to admit a bit of ignorance here). The link to the relevant documentation is here.

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