HostingEnvironmentSection Klas

Definitie

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

Overname

Object

ConfigurationElement

ConfigurationSection

HostingEnvironmentSection

Voorbeelden

In dit voorbeeld ziet u hoe u waarden declaratief opgeeft voor verschillende kenmerken van de sectie hostingEnvironment Element (ASP.NET Settings Schema), die ook kan worden geopend als leden van de klasse HostingEnvironmentSection.

In het volgende voorbeeld van een configuratiebestand ziet u hoe u waarden declaratief opgeeft voor het gedeelte hostingEnvironment Element (ASP.NET Settings Schema).

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

In het volgende codevoorbeeld ziet u hoe u de HostingEnvironmentSection klasse gebruikt.

#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

Opmerkingen

De klasse HostingEnvironmentSection biedt een manier om programmatisch toegang te krijgen tot en de waarden van de sectie HostingEnvironmentSection in het configuratiebestand te wijzigen. Wanneer een ASP.NET toepassing gedurende een opgegeven tijd niet wordt gebruikt, kan deze uit het geheugen worden verwijderd op basis van de eigenschappen IdleTimeout en ShutdownTimeout.

Zie ook

• ConfigurationSection
• HostingEnvironment
• IdleTimeout
• ShutdownTimeout