ConfigurationLockCollection 类

定义

public ref class ConfigurationLockCollection sealed : System::Collections::ICollection

public sealed class ConfigurationLockCollection : System.Collections.ICollection

type ConfigurationLockCollection = class
    interface ICollection
    interface IEnumerable

type ConfigurationLockCollection = class
    interface IEnumerable
    interface ICollection

Public NotInheritable Class ConfigurationLockCollection
Implements ICollection

继承

Object

ConfigurationLockCollection

实现

ICollection IEnumerable

示例

下面的代码示例演示如何使用 ConfigurationLockCollection 类型。

#region Using directives

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

#endregion

namespace Samples.Aspnet.SystemWebConfiguration
{
  class UsingConfigurationLockCollection
  {
    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.
        AnonymousIdentificationSection configSection =
          (AnonymousIdentificationSection)config.GetSection
          ("system.web/anonymousIdentification");

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

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

        // Create a ConfigurationLockCollection object.
        ConfigurationLockCollection lockedAttribList;
        lockedAttribList = configSection.LockAttributes;

        // Add an attribute to the lock collection.
        if (!lockedAttribList.Contains("enabled"))
        {
          lockedAttribList.Add("enabled");
        }
        if (!lockedAttribList.Contains("cookieless"))
        {
          lockedAttribList.Add("cookieless");
        }

        // Count property.
        Console.WriteLine("Collection Count: {0}",
         lockedAttribList.Count);

        // AttributeList method.
        Console.WriteLine("AttributeList: {0}",
         lockedAttribList.AttributeList);

        // Contains method.
        Console.WriteLine("Contains 'enabled': {0}",
         lockedAttribList.Contains("enabled"));

        // HasParentElements property.
        Console.WriteLine("HasParentElements: {0}",
         lockedAttribList.HasParentElements);

        // IsModified property.
        Console.WriteLine("IsModified: {0}",
         lockedAttribList.IsModified);

        // IsReadOnly method. 
        Console.WriteLine("IsReadOnly: {0}",
         lockedAttribList.IsReadOnly("enabled"));

        // Remove a configuration object 
        // from the collection.
        lockedAttribList.Remove("cookieless");

        // Clear the collection.
        lockedAttribList.Clear();

        // Create an ArrayList to contain
        // the property items of the configuration
        // section.
        ArrayList configPropertyAL = new ArrayList(lockedAttribList.Count);
        foreach (PropertyInformation propertyItem in
          configSection.ElementInformation.Properties)
        {
          configPropertyAL.Add(propertyItem.Name.ToString());
        }
        // Copy the elements of the ArrayList to a string array.
        String[] myArr = (String[])configPropertyAL.ToArray(typeof(string));
        // Create as a comma delimited list.
        string propList = string.Join(",", myArr);
        // Lock the items in the list.
        lockedAttribList.SetFromList(propList);
      }

      catch (Exception e)
      {
        // Unknown error.
        Console.WriteLine(e.ToString());
      }

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

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

Namespace Samples.Aspnet.SystemWebConfiguration
  Class UsingConfigurationLockCollection
    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 = _
         WebConfigurationManager.OpenWebConfiguration(configPath)

        ' Get the section related object.
        Dim configSection As _
        AnonymousIdentificationSection = _
         CType(config.GetSection("system.web/anonymousIdentification"), _
         AnonymousIdentificationSection)

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

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

        ' Create a ConfigurationLockCollection object.
        Dim lockedAttribList As ConfigurationLockCollection
        lockedAttribList = configSection.LockAttributes

        ' Add an attribute to the lock collection.
        If Not (lockedAttribList.Contains("enabled")) Then
          lockedAttribList.Add("enabled")
        End If
        If Not (lockedAttribList.Contains("cookieless")) Then
          lockedAttribList.Add("cookieless")
        End If

        ' Count property.
        Console.WriteLine("Collection Count: {0}", _
         lockedAttribList.Count)

        ' AttributeList method.
        Console.WriteLine("AttributeList: {0}", _
         lockedAttribList.AttributeList)

        ' Contains method.
        Console.WriteLine("Contains 'enabled': {0}", _
         lockedAttribList.Contains("enabled"))

        ' HasParentElements property.
        Console.WriteLine("HasParentElements: {0}", _
         lockedAttribList.HasParentElements)

        ' IsModified property.
        Console.WriteLine("IsModified: {0}", _
         lockedAttribList.IsModified)

        ' IsReadOnly method. 
        Console.WriteLine("IsReadOnly: {0}", _
         lockedAttribList.IsReadOnly("enabled"))

        ' Remove a configuration object 
        ' from the collection.
        lockedAttribList.Remove("cookieless")

        ' Clear the collection.
        lockedAttribList.Clear()

        ' Create an ArrayList to contain
        ' the property items of the configuration
        ' section.
        Dim configPropertyAL As ArrayList = _
         New ArrayList(lockedAttribList.Count)
        For Each propertyItem As _
         PropertyInformation In _
         configSection.ElementInformation.Properties
          configPropertyAL.Add(propertyItem.Name.ToString())
        Next
        ' Copy the elements of the ArrayList to a string array.
        Dim myArr As [String]() = _
        CType(configPropertyAL.ToArray(GetType(String)), [String]())
        ' Create as a comma delimited list.
        Dim propList As String = String.Join(",", myArr)
        ' Lock the items in the list.
        lockedAttribList.SetFromList(propList)

      Catch e As Exception
        ' Validation failed.
        Console.WriteLine("Error: {0}", _
          e.Message.ToString())
      End Try

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

注解

在配置文件中，配置节包含属性和元素。 配置 ConfigurationLockCollection 节的锁定属性存在集合，可通过 LockAttributes 类的 ConfigurationElement 属性进行访问。 另一个 ConfigurationLockCollection 集合用于配置节的锁定元素，可通过 LockElements 类的 ConfigurationElement 属性进行访问。

属性

方法

显式接口实现

扩展方法

适用于

另请参阅

• LockAllAttributesExcept
• LockAllElementsExcept
• ConfigurationElement