NameValueConfigurationCollection Třída

Definice

public ref class NameValueConfigurationCollection sealed : System::Configuration::ConfigurationElementCollection

[System.Configuration.ConfigurationCollection(typeof(System.Configuration.NameValueConfigurationElement))]
public sealed class NameValueConfigurationCollection : System.Configuration.ConfigurationElementCollection

[<System.Configuration.ConfigurationCollection(typeof(System.Configuration.NameValueConfigurationElement))>]
type NameValueConfigurationCollection = class
    inherit ConfigurationElementCollection

Public NotInheritable Class NameValueConfigurationCollection
Inherits ConfigurationElementCollection

Dědičnost

Object

ConfigurationElement

ConfigurationElementCollection

NameValueConfigurationCollection

Atributy

ConfigurationCollectionAttribute

Příklady

Následující příklad kódu ukazuje, jak použít NameValueConfigurationCollection typ.

#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.
                // Make sure that you have a Web site on the
                // same server called TestConfig.
                string configPath = "/TestConfig";

                // 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)
                {
                    // Assign  domain name.
                    if (propertyItem.Name == "domain")
                        propertyItem.Value = "MyDomain";

                    if (propertyItem.Value != null)
                    {
                        // Enable SSL for cookie exchange.
                        if (propertyItem.Name == "cookieRequireSSL")
                            propertyItem.Value = true;

                        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);
                }

                // Assign the domain calue.
                configSection.Domain = myNameValConfigCollection["domain"].Value;
                // Assign the SSL required value.
                if (myNameValConfigCollection["cookieRequireSSL"].Value == "true")
                    configSection.CookieRequireSSL = true;

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

                // Save changes to the configuration file.
                // This modifies the Web.config of the TestConfig site.
                config.Save(ConfigurationSaveMode.Minimal, true);

                // Clear the collection.
                myNameValConfigCollection.Clear();
            }

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

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

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


Namespace Samples.AspNet
    Class UsingNameValueConfigurationCollection
        Public Shared Sub Main(ByVal args As String())
            Try
                ' Set the path of the config file. 
                ' Make sure that you have a Web site on the
                ' same server called TestConfig.
                Dim configPath As String = "/TestConfig"

                ' Get the Web application configuration object.
                Dim config As Configuration = _
                System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(configPath)

                ' Get the section related object.
                Dim configSection _
                As System.Web.Configuration.AnonymousIdentificationSection = _
                DirectCast(config.GetSection("system.web/anonymousIdentification"),  _
                System.Web.Configuration.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 NameValueConfigurationCollection object.
                Dim myNameValConfigCollection As New NameValueConfigurationCollection()

                For Each propertyItem As PropertyInformation In configSection.ElementInformation.Properties
                    ' Assign  domain name.
                    If propertyItem.Name = "domain" Then
                        propertyItem.Value = "MyDomain"
                    End If

                    If propertyItem.Value <> Nothing Then
                        ' Enable SSL for cookie exchange.
                        If propertyItem.Name = "cookieRequireSSL" Then
                            propertyItem.Value = True
                        End If

                        Dim nameValConfigElement As New NameValueConfigurationElement(propertyItem.Name.ToString(), propertyItem.Value.ToString())

                        ' Add a NameValueConfigurationElement
                        ' to the collection.

                        myNameValConfigCollection.Add(nameValConfigElement)
                    End If
                Next

                ' 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.
                For Each configItem As NameValueConfigurationElement In myNameValConfigCollection
                    Console.WriteLine()
                    Console.WriteLine("Configuration Details:")
                    Console.WriteLine("Name: {0}", configItem.Name)
                    Console.WriteLine("Value: {0}", configItem.Value)
                Next

                ' Assign the domain calue.
                configSection.Domain = myNameValConfigCollection("domain").Value
                ' Assign the SSL required value.
                If myNameValConfigCollection("cookieRequireSSL").Value = "true" Then
                    configSection.CookieRequireSSL = True
                End If

                ' Remove domain from the collection.
                Dim myConfigElement As NameValueConfigurationElement = myNameValConfigCollection("domain")
                ' Remove method.
                myNameValConfigCollection.Remove(myConfigElement)

                ' Save changes to the configuration file.
                ' This modifies the Web.config of the TestConfig site.
                config.Save(ConfigurationSaveMode.Minimal, True)

                ' Clear the collection.
                myNameValConfigCollection.Clear()
            Catch e As Exception

                ' Unknown error.
                Console.WriteLine(e.ToString())
            End Try

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

Poznámky

Třída NameValueConfigurationCollection umožňuje programově přistupovat ke kolekci NameValueConfigurationElement objektů.

Konstruktory

Vlastnosti

Metody

Explicitní implementace rozhraní

Metody rozšíření

Platí pro

Viz také

• NameValueConfigurationElement