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CommaDelimitedStringCollection Class

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

Represents a collection of string elements separated by commas. This class cannot be inherited.

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

public sealed class CommaDelimitedStringCollection : StringCollection
public final class CommaDelimitedStringCollection extends StringCollection
public final class CommaDelimitedStringCollection extends StringCollection

This class represents a string collection that is serialized as a comma-delimited list of string elements.

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

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

namespace Samples.AspNet.Config
{
  class CommaDelimitedStrCollection
  {
    static void Main(string[] args)
    {
      // Display title and info.
      Console.WriteLine("ASP.NET Configuration Info");
      Console.WriteLine("Type: CommaDelimitedStringCollection");
      Console.WriteLine();

      // Set the path of the config file.
      string configPath = "/aspnet";

      // Get the Web application configuration object.
      Configuration config = 
        WebConfigurationManager.OpenWebConfiguration(configPath);

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

      // Get the authorization rule collection.
      AuthorizationRuleCollection authorizationRuleCollection = 
        configSection.Rules;

      // Create a CommaDelimitedStringCollection object.
      CommaDelimitedStringCollection myStrCollection =
        new CommaDelimitedStringCollection();

      for (int i = 0; i < authorizationRuleCollection.Count; i++)
      {
        if (authorizationRuleCollection.Get(i).Action.ToString().ToLower() 
          == "allow")
        {
          // Add values to the CommaDelimitedStringCollection object.
          myStrCollection.AddRange(
            authorizationRuleCollection.Get(i).Users.ToString().Split(
            ",".ToCharArray()));
        
      

      Console.WriteLine("Allowed Users: {0",
        myStrCollection.ToString());

      // Count the elements in the collection.
      Console.WriteLine("Allowed User Count: {0", 
        myStrCollection.Count);

      // Call the Contains method.
      Console.WriteLine("Contains 'userName1': {0",
        myStrCollection.Contains("userName1"));

      // Determine the index of an element
      // in the collection.
      Console.WriteLine("IndexOf 'userName0': {0",
        myStrCollection.IndexOf("userName0"));

      // Call IsModified.
      Console.WriteLine("IsModified: {0",
        myStrCollection.IsModified);

      // Call IsReadyOnly.
      Console.WriteLine("IsReadOnly: {0",
        myStrCollection.IsReadOnly);

      Console.WriteLine();
      Console.WriteLine("Add a user name to the collection.");
      // Insert a new element in the collection.
      myStrCollection.Insert(myStrCollection.Count, "userNameX");

      Console.WriteLine("Collection Value: {0",
        myStrCollection.ToString());

      Console.WriteLine();
      Console.WriteLine("Remove a user name from the collection.");
      // Remove an element of the collection.
      myStrCollection.Remove("userNameX");

      Console.WriteLine("Collection Value: {0",
        myStrCollection.ToString());

      // Display and wait
      Console.ReadLine();
    
  


System.Object
   System.Collections.Specialized.StringCollection
    System.Configuration.CommaDelimitedStringCollection
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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