HostingEnvironmentSection Classe

Definição

public ref class HostingEnvironmentSection sealed : System::Configuration::ConfigurationSection

public sealed class HostingEnvironmentSection : System.Configuration.ConfigurationSection

type HostingEnvironmentSection = class
    inherit ConfigurationSection

Public NotInheritable Class HostingEnvironmentSection
Inherits ConfigurationSection

Herança

Object

ConfigurationElement

ConfigurationSection

HostingEnvironmentSection

Exemplos

Este exemplo demonstra como especificar valores declarativamente para vários atributos da secção hostingEnvironment Element (ASP.NET Settings Schema), que também podem ser acedidos como membros da classe HostingEnvironmentSection.

O exemplo seguinte de ficheiro de configuração mostra como especificar valores declarativamente para a secção hostingEnvironment Element (ASP.NET Settings Schema).

<system.web>
  <hostingEnvironment
    idleTimeout="20"
    shutdownTimeout="30"
  />
</system.web>

O exemplo de código seguinte demonstra como usar a HostingEnvironmentSection classe.

#region Using directives

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
using System.Web;
using System.Web.Configuration;

#endregion

namespace Samples.Aspnet.SystemWebConfiguration
{
  class UsingHostingEnvironmentSection
  {
    static void Main(string[] args)
    {
      try
      {
        // Set the path of the config file.
        string configPath = "";
 
        // Get the Web application configuration object.
        Configuration config = WebConfigurationManager.OpenWebConfiguration(configPath);

        // Get the section related object.
        HostingEnvironmentSection configSection = 
          (HostingEnvironmentSection)config.GetSection("system.web/hostingEnvironment");

        // Display title and info.
        Console.WriteLine("ASP.NET Configuration Info");
        Console.WriteLine();

        // Display Config details.
        Console.WriteLine("File Path: {0}", config.FilePath);
        Console.WriteLine("Section Path: {0}", configSection.SectionInformation.Name);

        // Display IdleTimout property
        Console.WriteLine("Idle Timeout: {0}", configSection.IdleTimeout);

        // Set IdleTimout property
        configSection.IdleTimeout = TimeSpan.FromMinutes(40);

        // Display ShutdownTimeout property
        Console.WriteLine("Shutdown Timeout: {0}", configSection.ShutdownTimeout);

        // Set ShutdownTimeout property
        configSection.ShutdownTimeout = TimeSpan.FromSeconds(60);

        // Update if not locked.
        if (!configSection.SectionInformation.IsLocked)
        {
          config.Save();
          Console.WriteLine("** Configuration updated.");
        }
        else
        {
          Console.WriteLine("** Could not update, section is locked.");
        }
      }
      catch (Exception e)
        {
          // Unknown error.
          Console.WriteLine(e.ToString());
        }

      // Display and wait
      Console.ReadLine();
    }
  }
}

Imports System.Collections.Generic
Imports System.Text
Imports System.Configuration
Imports System.Web
Imports System.Web.Configuration

Namespace Samples.Aspnet.SystemWebConfiguration
  Class UsingSiteMapSection
    Public Shared Sub Main()
      Try
        ' Set the path of the config file.
        Dim configPath As String = ""

        ' Get the Web application configuration object.
        Dim config As System.Configuration.Configuration = _
         System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(configPath)

        ' Get the section related object.
        Dim configSection As System.Web.Configuration.HostingEnvironmentSection = _
         CType(config.GetSection("system.web/hostingEnvironment"), System.Web.Configuration.HostingEnvironmentSection)

        ' Display title and info.
        Console.WriteLine("ASP.NET Configuration Info")
        Console.WriteLine()

        ' Display Config details.
        Console.WriteLine("File Path: {0}", config.FilePath)
        Console.WriteLine("Section Path: {0}", configSection.SectionInformation.Name)

        ' Display the IdleTimout property
        Console.WriteLine("Idle Timeout: {0}", configSection.IdleTimeout)

        ' Set the IdleTimout property
        configSection.IdleTimeout = TimeSpan.FromMinutes(40)

        ' Display the ShutdownTimeout property
        Console.WriteLine("Shutdown Timeout: {0}", configSection.ShutdownTimeout)

        ' Set the ShutdownTimeout property
        configSection.ShutdownTimeout = TimeSpan.FromSeconds(60)

        ' Update if not locked.
        If Not configSection.SectionInformation.IsLocked Then
          config.Save()
          Console.WriteLine("** Configuration updated.")
        Else
          Console.WriteLine("** Could not update, section is locked.")
        End If

      Catch e As Exception
        ' Unknown error.
        Console.WriteLine(e.ToString())
      End Try

      ' Display and wait
      Console.ReadLine()
    End Sub
  End Class
End Namespace

Observações

A classe HostingEnvironmentSection fornece uma forma de aceder e modificar programaticamente os valores da secção HostingEnvironmentSection no ficheiro de configuração. Quando uma aplicação ASP.NET está inutilizada durante um período de tempo especificado, pode ser descarregada da memória com base nas propriedades IdleTimeout e ShutdownTimeout.

Ver também

• ConfigurationSection
• HostingEnvironment
• IdleTimeout
• ShutdownTimeout