ASP.NET 中获取web.config信息

.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;
}

获取machineKey
System.Configuration.ConfigurationManager.GetSection("system.web/machineKey");