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NameValueConfigurationCollection Class

Note: This class is new in the .NET Framework version 2.0.

Contains a collection of NameValueConfigurationElement objects. This class cannot be inherited.

Namespace: System.Configuration
Assembly: System.Configuration (in system.configuration.dll)

public sealed class NameValueConfigurationCollection : ConfigurationElementCollection
public final class NameValueConfigurationCollection extends ConfigurationElementCollection
public final class NameValueConfigurationCollection extends ConfigurationElementCollection

The NameValueConfigurationCollection class allows you to programmatically access a collection of NameValueConfigurationElement objects.

The following code example demonstrates how to use the NameValueConfigurationCollection type.

#region Using directives

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

#endregion

namespace Samples.AspNet
{
  class UsingNameValueConfigurationCollection
  {
    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 NameValueConfigurationCollection object.
        NameValueConfigurationCollection myNameValConfigCollection =
          new NameValueConfigurationCollection();

        foreach (PropertyInformation propertyItem in
          configSection.ElementInformation.Properties)
        {
          NameValueConfigurationElement nameValConfigElement =
            new NameValueConfigurationElement
            (propertyItem.Name.ToString(), propertyItem.Value.ToString());
          // Add a NameValueConfigurationElement
          // to the collection.
          myNameValConfigCollection.Add(nameValConfigElement);
        

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

        // Item property.
        Console.WriteLine("Value of property 'enabled': {0",
         myNameValConfigCollection["enabled"].Value);

        // Display the contents of the collection.
        foreach (NameValueConfigurationElement configItem
          in myNameValConfigCollection)
        {
          Console.WriteLine();
          Console.WriteLine("Configuration Details:");
          Console.WriteLine("Name: {0", configItem.Name);
          Console.WriteLine("Value: {0", configItem.Value);
        

        // Remove method.
        NameValueConfigurationElement myConfigElement =
          myNameValConfigCollection["domain"];
        myNameValConfigCollection.Remove(myConfigElement);

        // Clear method.
        myNameValConfigCollection.Clear();
      

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

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


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0
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