ConfigurationLockCollection Classe

Definição

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

Herança

Object

ConfigurationLockCollection

Implementações

ICollection IEnumerable

Exemplos

O exemplo de código seguinte demonstra como usar o ConfigurationLockCollection tipo.

#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

Observações

Num ficheiro de configuração, uma secção de configuração contém tanto atributos como elementos. Existe uma ConfigurationLockCollection coleção para os atributos bloqueados de uma secção de configuração, e é acedida através da LockAttributes propriedade da ConfigurationElement classe. Existe outra ConfigurationLockCollection coleção para os elementos bloqueados de uma secção de configuração, e é acedida através da LockElements propriedade da ConfigurationElement classe.

Ver também

• LockAllAttributesExcept
• LockAllElementsExcept
• ConfigurationElement