获取当前ASP.NET应用的认证模式

.NET 1.1里,

using System.Configuration;using System.Web.Configuration;using System.Reflection;

public AuthenticationMode GetAuthenticationMode() {  object auth = ConfigurationSettings.GetConfig("system.web/authentication");  if (auth!= null)  {  //an internal class "System.Web.Configuration.AuthenticationConfig" Type t = auth.GetType();  PropertyInfo pi = t.GetProperty("Mode",BindingFlags.Instance|BindingFlags.NonPublic);  return (AuthenticationMode)pi.GetValue(auth,null);   }

  return AuthenticationMode.None; }

.NET 2.0里,

using System.Configuration;using System.Web.Configuration;

public AuthenticationMode GetAuthenticationMode() {         Configuration config = WebConfigurationManager.OpenWebConfiguration("~");

        SystemWebSectionGroup swsg = (SystemWebSectionGroup)config.GetSectionGroup("system.web");

        AuthenticationSection auth = swsg.Authentication;  return auth.Mode;}