Configuration Configuration Configuration Configuration Class

定義

特定のコンピューター、アプリケーション、またはリソースに適用される構成ファイルを表します。Represents a configuration file that is applicable to a particular computer, application, or resource. このクラスは継承できません。This class cannot be inherited.

public ref class Configuration sealed
public sealed class Configuration
type Configuration = class
Public NotInheritable Class Configuration
継承
ConfigurationConfigurationConfigurationConfiguration

次のコード例は、使用する方法を示します、Configuration構成ファイル要素にアクセスするクラス。The following code example demonstrates how to use the Configuration class to access configuration file elements.

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
using System.Globalization;
using System.ComponentModel;
using System.Collections.Specialized;

// Before compiling this application, 
// remember to reference the System.Configuration assembly in your project. 
#region CustomSection class

// Define a custom section. This class is used to
// populate the configuration file.
// It creates the following custom section:
//  <CustomSection name="Contoso" url="http://www.contoso.com" port="8080" />.
public sealed class CustomSection : ConfigurationSection
{

    public CustomSection()
    {

    }


    [ConfigurationProperty("name",
     DefaultValue = "Contoso",
     IsRequired = true,
     IsKey = true)]
    public string Name
    {
        get
        {
            return (string)this["name"];
        }
        set
        {
            this["name"] = value;
        }
    }

    [ConfigurationProperty("url",
        DefaultValue = "http://www.contoso.com",
        IsRequired = true)]
    [RegexStringValidator(@"\w+:\/\/[\w.]+\S*")]
    public string Url
    {
        get
        {
            return (string)this["url"];
        }
        set
        {
            this["url"] = value;
        }
    }

    [ConfigurationProperty("port",
        DefaultValue = (int)8080,
        IsRequired = false)]
    [IntegerValidator(MinValue = 0,
        MaxValue = 8080, ExcludeRange = false)]
    public int Port
    {
        get
        {
            return (int)this["port"];
        }
        set
        {
            this["port"] = value;
        }
    }



}

#endregion

#region Using Configuration Class
class UsingConfigurationClass
{


    // Show how to create an instance of the Configuration class
    // that represents this application configuration file.  
    static void CreateConfigurationFile()
    {
        try
        {

            // Create a custom configuration section.
            CustomSection customSection = new CustomSection();

            // Get the current configuration file.
            System.Configuration.Configuration config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None);

            // Create the custom section entry  
            // in <configSections> group and the 
            // related target section in <configuration>.
            if (config.Sections["CustomSection"] == null)
            {
                config.Sections.Add("CustomSection", customSection);
            }

            // Create and add an entry to appSettings section.
            
            string conStringname="LocalSqlServer";
            string conString = @"data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true";
            string providerName="System.Data.SqlClient";

            ConnectionStringSettings connStrSettings = new ConnectionStringSettings();
            connStrSettings.Name = conStringname;
            connStrSettings.ConnectionString= conString;
            connStrSettings.ProviderName = providerName;

            config.ConnectionStrings.ConnectionStrings.Add(connStrSettings);
            
            // Add an entry to appSettings section.
            int appStgCnt =
                ConfigurationManager.AppSettings.Count;
            string newKey = "NewKey" + appStgCnt.ToString();

            string newValue = DateTime.Now.ToLongDateString() +
              " " + DateTime.Now.ToLongTimeString();

            config.AppSettings.Settings.Add(newKey, newValue);

            // Save the configuration file.
            customSection.SectionInformation.ForceSave = true;
            config.Save(ConfigurationSaveMode.Full);

            Console.WriteLine("Created configuration file: {0}",
                config.FilePath);

        }
        catch (ConfigurationErrorsException err)
        {
            Console.WriteLine("CreateConfigurationFile: {0}", err.ToString());
        }

    }

    // Show how to use the GetSection(string) method.
    static void GetCustomSection()
    {
        try
        {

            CustomSection customSection;

            // Get the current configuration file.
            System.Configuration.Configuration config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None) as Configuration;

            customSection =
                config.GetSection("CustomSection") as CustomSection;

            Console.WriteLine("Section name: {0}", customSection.Name);
            Console.WriteLine("Url: {0}", customSection.Url);
            Console.WriteLine("Port: {0}", customSection.Port);

        }
        catch (ConfigurationErrorsException err)
        {
            Console.WriteLine("Using GetSection(string): {0}", err.ToString());
        }

    }


    // Show how to use different modalities to save 
    // a configuration file.
    static void SaveConfigurationFile()
    {
        try
        {

            // Get the current configuration file.
            System.Configuration.Configuration config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None) as Configuration;

            // Save the full configuration file and force save even if the file was not modified.
            config.SaveAs("MyConfigFull.config", ConfigurationSaveMode.Full, true);
            Console.WriteLine("Saved config file as MyConfigFull.config using the mode: {0}",
                ConfigurationSaveMode.Full.ToString());

            config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None) as Configuration;

            // Save only the part of the configuration file that was modified. 
            config.SaveAs("MyConfigModified.config", ConfigurationSaveMode.Modified, true);
            Console.WriteLine("Saved config file as MyConfigModified.config using the mode: {0}",
                ConfigurationSaveMode.Modified.ToString());

            config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None) as Configuration;

            // Save the full configuration file.
            config.SaveAs("MyConfigMinimal.config");
            Console.WriteLine("Saved config file as MyConfigMinimal.config using the mode: {0}",
                ConfigurationSaveMode.Minimal.ToString());

        }
        catch (ConfigurationErrorsException err)
        {
            Console.WriteLine("SaveConfigurationFile: {0}", err.ToString());
        }

    }


    // Show how use the AppSettings and ConnectionStrings 
    // properties.
    static void GetSections(string section)
    {
        try
        {

            // Get the current configuration file.
            System.Configuration.Configuration config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None) as Configuration;

            // Get the selected section.
            switch (section)
            {
                case "appSettings":
                    try
                    {
                        AppSettingsSection appSettings =
                            config.AppSettings as AppSettingsSection;
                        Console.WriteLine("Section name: {0}",
                                appSettings.SectionInformation.SectionName);

                        // Get the AppSettings section elements.
                        Console.WriteLine();
                        Console.WriteLine("Using AppSettings property.");
                        Console.WriteLine("Application settings:");
                        // Get the KeyValueConfigurationCollection 
                        // from the configuration.
                        KeyValueConfigurationCollection settings =
                          config.AppSettings.Settings;

                        // Display each KeyValueConfigurationElement.
                        foreach (KeyValueConfigurationElement keyValueElement in settings)
                        {
                            Console.WriteLine("Key: {0}", keyValueElement.Key);
                            Console.WriteLine("Value: {0}", keyValueElement.Value);
                            Console.WriteLine();
                        }
                    }
                    catch (ConfigurationErrorsException e)
                    {
                        Console.WriteLine("Using AppSettings property: {0}",
                            e.ToString());
                    }
                    break;

                case "connectionStrings":
                    ConnectionStringsSection
                        conStrSection =
                        config.ConnectionStrings as ConnectionStringsSection;
                    Console.WriteLine("Section name: {0}",
                        conStrSection.SectionInformation.SectionName);

                    try
                    {
                        if (conStrSection.ConnectionStrings.Count != 0)
                        {
                            Console.WriteLine();
                            Console.WriteLine("Using ConnectionStrings property.");
                            Console.WriteLine("Connection strings:");

                            // Get the collection elements.
                            foreach (ConnectionStringSettings connection in
                              conStrSection.ConnectionStrings)
                            {
                                string name = connection.Name;
                                string provider = connection.ProviderName;
                                string connectionString = connection.ConnectionString;

                                Console.WriteLine("Name:               {0}",
                                  name);
                                Console.WriteLine("Connection string:  {0}",
                                  connectionString);
                                Console.WriteLine("Provider:            {0}",
                                   provider);
                            }
                        }
                    }
                    catch (ConfigurationErrorsException e)
                    {
                        Console.WriteLine("Using ConnectionStrings property: {0}",
                            e.ToString());
                    }
                    break;

                default:
                    Console.WriteLine(
                        "GetSections: Unknown section (0)", section);
                    break;
            }

        }
        catch (ConfigurationErrorsException err)
        {
            Console.WriteLine("GetSections: (0)", err.ToString());
        }

    }

    // Show how to use the Configuration object properties 
    // to obtain configuration file information.
    static void GetConfigurationInformation()
    {
        try
        {

            // Get the current configuration file.
            System.Configuration.Configuration config =
                    ConfigurationManager.OpenExeConfiguration(
                    ConfigurationUserLevel.None) as Configuration;

            Console.WriteLine("Reading configuration information:");

            ContextInformation evalContext =
                config.EvaluationContext as ContextInformation;
            Console.WriteLine("Machine level: {0}",
                evalContext.IsMachineLevel.ToString());
                    
            string filePath = config.FilePath;
            Console.WriteLine("File path: {0}", filePath);
             
            bool hasFile = config.HasFile;
            Console.WriteLine("Has file: {0}", hasFile.ToString());
                   
              
            ConfigurationSectionGroupCollection
                groups = config.SectionGroups;
            Console.WriteLine("Groups: {0}", groups.Count.ToString());
            foreach (ConfigurationSectionGroup group in groups)
            {
                Console.WriteLine("Group Name: {0}", group.Name);
               // Console.WriteLine("Group Type: {0}", group.Type);
            }
                  

            ConfigurationSectionCollection
                sections = config.Sections;
            Console.WriteLine("Sections: {0}", sections.Count.ToString());
            
        }
        catch (ConfigurationErrorsException err)
        {
            Console.WriteLine("GetConfigurationInformation: {0}",err.ToString());
        }

    }

#endregion 

#region Application Main
    //*** User Interaction Class ***//

    // Obtain user's input and provide feedback.
    // This class contains the application Main() function.
    // It calls the ConfigurationManager methods based 
    // on the user's selection.
    class ApplicationMain
    {
        // Display user's menu.
        public static void UserMenu()
        {
            string applicationName =
                Environment.GetCommandLineArgs()[0] + ".exe";
            StringBuilder buffer = new StringBuilder();

            buffer.AppendLine("Application: " + applicationName);
            buffer.AppendLine("Make your selection.");
            buffer.AppendLine("?    -- Display help.");
            buffer.AppendLine("Q,q  -- Exit the application.");
            
            buffer.Append("1    -- Instantiate the");
            buffer.AppendLine(" Configuration class.");

            buffer.Append("2    -- Use GetSection(string) to read ");
            buffer.AppendLine(" a custom section.");
            
            buffer.Append("3    -- Use SaveAs methods");
            buffer.AppendLine(" to save the configuration file.");

            buffer.Append("4    -- Use AppSettings property to read");
            buffer.AppendLine(" the appSettings section.");
            buffer.Append("5    -- Use ConnectionStrings property to read");
            buffer.AppendLine(" the connectionStrings section.");

            buffer.Append("6    -- Use Configuration class properties");
            buffer.AppendLine(" to obtain configuration information.");

            Console.Write(buffer.ToString());
        }

        // Obtain user's input and provide
        // feedback.
        static void Main(string[] args)
        {
            // Define user selection string.
            string selection;

            // Get the name of the application.
            string appName =
                Environment.GetCommandLineArgs()[0];


            // Get user selection.
            while (true)
            {

                UserMenu();
                Console.Write("> ");
                selection = Console.ReadLine();
                if (!string.IsNullOrEmpty(selection))
                    break;
            }

            while (selection.ToLower() != "q")
            {
                // Process user's input.
                switch (selection)
                {
                    case "1":
                        // Show how to create an instance of the Configuration class.
                        CreateConfigurationFile();
                        break;

                    case "2":
                        // Show how to use GetSection(string) method.
                        GetCustomSection();
                        break;

                    case "3":
                        // Show how to use ConnectionStrings.
                        SaveConfigurationFile();
                        break;

                    case "4":
                        // Show how to use the AppSettings property.
                        GetSections("appSettings");
                        break;

                    case "5":
                        // Show how to use the ConnectionStrings property.
                        GetSections("connectionStrings");
                        break;

                    case "6":
                        // Show how to obtain configuration file information.
                        GetConfigurationInformation();
                        break;


                    default:
                        UserMenu();
                        break;
                }
                Console.Write("> ");
                selection = Console.ReadLine();
            }
        }
    }
#endregion

}
Imports System.Text
Imports System.Configuration
Imports System.Globalization
Imports System.ComponentModel
Imports System.Collections.Specialized

' Before compiling this application, 
' remember to reference the System.Configuration assembly in your project. 
#Region "CustomSection class"

' Define a custom section. This class is used to
' populate the configuration file.
' It creates the following custom section:
'  <CustomSection name="Contoso" url="http://www.contoso.com" port="8080" />.
Public NotInheritable Class CustomSection
    Inherits ConfigurationSection

    Public Sub New()

    End Sub


    <ConfigurationProperty("name", DefaultValue:="Contoso", IsRequired:=True, IsKey:=True)> _
    Public Property Name() As String
        Get
            Return CStr(Me("name"))
        End Get
        Set(ByVal value As String)
            Me("name") = value
        End Set
    End Property

    <ConfigurationProperty("url", DefaultValue:="http://www.contoso.com", IsRequired:=True), RegexStringValidator("\w+:\/\/[\w.]+\S*")> _
    Public Property Url() As String
        Get
            Return CStr(Me("url"))
        End Get
        Set(ByVal value As String)
            Me("url") = value
        End Set
    End Property

    <ConfigurationProperty("port", DefaultValue:=CInt(8080), IsRequired:=False), IntegerValidator(MinValue:=0, MaxValue:=8080, ExcludeRange:=False)> _
    Public Property Port() As Integer
        Get
            Return CInt(Fix(Me("port")))
        End Get
        Set(ByVal value As Integer)
            Me("port") = value
        End Set
    End Property



End Class

#End Region

#Region "Using Configuration Class"
Friend Class UsingConfigurationClass

    ' Show how to create an instance of the Configuration class
    ' that represents this application configuration file.  
    Public Shared Sub CreateConfigurationFile()
        Try

            ' Create a custom configuration section.
            Dim customSection As New CustomSection()

            ' Get the current configuration file.
            Dim config As System.Configuration.Configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)

            ' Create the section entry  
            ' in <configSections> and the 
            ' related target section in <configuration>.
            If config.Sections("CustomSection") Is Nothing Then
                config.Sections.Add("CustomSection", customSection)
            End If

            ' Create and add an entry to appSettings section.

            Dim conStringname As String = "LocalSqlServer"
            Dim conString As String = "data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
            Dim providerName As String = "System.Data.SqlClient"

            Dim connStrSettings As New ConnectionStringSettings()
            connStrSettings.Name = conStringname
            connStrSettings.ConnectionString = conString
            connStrSettings.ProviderName = providerName

            config.ConnectionStrings.ConnectionStrings.Add(connStrSettings)

            ' Add an entry to appSettings section.
            Dim appStgCnt As Integer = ConfigurationManager.AppSettings.Count
            Dim newKey As String = "NewKey" & appStgCnt.ToString()

            Dim newValue As String = Date.Now.ToLongDateString() & " " & Date.Now.ToLongTimeString()

            config.AppSettings.Settings.Add(newKey, newValue)

            ' Save the configuration file.
            customSection.SectionInformation.ForceSave = True
            config.Save(ConfigurationSaveMode.Full)

            Console.WriteLine("Created configuration file: {0}", config.FilePath)

        Catch err As ConfigurationErrorsException
            Console.WriteLine("CreateConfigurationFile: {0}", err.ToString())
        End Try

    End Sub

    ' Show how to use the GetSection(string) method.
    Public Shared Sub GetCustomSection()
        Try

            Dim customSection As CustomSection

            ' Get the current configuration file.
            Dim config As System.Configuration.Configuration = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)

            customSection = TryCast(config.GetSection("CustomSection"), CustomSection)

            Console.WriteLine("Section name: {0}", customSection.Name)
            Console.WriteLine("Url: {0}", customSection.Url)
            Console.WriteLine("Port: {0}", customSection.Port)

        Catch err As ConfigurationErrorsException
            Console.WriteLine("Using GetSection(string): {0}", err.ToString())
        End Try

    End Sub


    ' Show how to use different modalities to save 
    ' a configuration file.
    Public Shared Sub SaveConfigurationFile()
        Try

            ' Get the current configuration file.
            Dim config As System.Configuration.Configuration = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)

            ' Save the full configuration file and force save even if the file was not modified.
            config.SaveAs("MyConfigFull.config", ConfigurationSaveMode.Full, True)
            Console.WriteLine("Saved config file as MyConfigFull.config using the mode: {0}", ConfigurationSaveMode.Full.ToString())

            config = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)

            ' Save only the part of the configuration file that was modified. 
            config.SaveAs("MyConfigModified.config", ConfigurationSaveMode.Modified, True)
            Console.WriteLine("Saved config file as MyConfigModified.config using the mode: {0}", ConfigurationSaveMode.Modified.ToString())

            config = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)

            ' Save the full configuration file.
            config.SaveAs("MyConfigMinimal.config")
            Console.WriteLine("Saved config file as MyConfigMinimal.config using the mode: {0}", ConfigurationSaveMode.Minimal.ToString())

        Catch err As ConfigurationErrorsException
            Console.WriteLine("SaveConfigurationFile: {0}", err.ToString())
        End Try

    End Sub


    ' Show how use the AppSettings and ConnectionStrings 
    ' properties.
    Public Shared Sub GetSections(ByVal section As String)
        Try

            ' Get the current configuration file.
            Dim config As System.Configuration.Configuration = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)

            ' Get the selected section.
            Select Case section
                Case "appSettings"
                    Try
                        Dim appSettings As AppSettingsSection = TryCast(config.AppSettings, AppSettingsSection)
                        Console.WriteLine("Section name: {0}", appSettings.SectionInformation.SectionName)

                        ' Get the AppSettings section elements.
                        Console.WriteLine()
                        Console.WriteLine("Using AppSettings property.")
                        Console.WriteLine("Application settings:")
                        ' Get the KeyValueConfigurationCollection 
                        ' from the configuration.
                        Dim settings As KeyValueConfigurationCollection = config.AppSettings.Settings

                        ' Display each KeyValueConfigurationElement.
                        For Each keyValueElement As KeyValueConfigurationElement In settings
                            Console.WriteLine("Key: {0}", keyValueElement.Key)
                            Console.WriteLine("Value: {0}", keyValueElement.Value)
                            Console.WriteLine()
                        Next keyValueElement
                    Catch e As ConfigurationErrorsException
                        Console.WriteLine("Using AppSettings property: {0}", e.ToString())
                    End Try

                Case "connectionStrings"
                    Dim conStrSection As ConnectionStringsSection = TryCast(config.ConnectionStrings, ConnectionStringsSection)
                    Console.WriteLine("Section name: {0}", conStrSection.SectionInformation.SectionName)

                    Try
                        If conStrSection.ConnectionStrings.Count <> 0 Then
                            Console.WriteLine()
                            Console.WriteLine("Using ConnectionStrings property.")
                            Console.WriteLine("Connection strings:")

                            ' Get the collection elements.
                            For Each connection As ConnectionStringSettings In conStrSection.ConnectionStrings
                                Dim name As String = connection.Name
                                Dim provider As String = connection.ProviderName
                                Dim connectionString As String = connection.ConnectionString

                                Console.WriteLine("Name:               {0}", name)
                                Console.WriteLine("Connection string:  {0}", connectionString)
                                Console.WriteLine("Provider:            {0}", provider)
                            Next connection
                        End If
                    Catch e As ConfigurationErrorsException
                        Console.WriteLine("Using ConnectionStrings property: {0}", e.ToString())
                    End Try

                Case Else
                    Console.WriteLine("GetSections: Unknown section (0)", section)
            End Select

        Catch err As ConfigurationErrorsException
            Console.WriteLine("GetSections: (0)", err.ToString())
        End Try

    End Sub

    ' Show how to use the Configuration object properties 
    ' to obtain configuration file information.
    Public Shared Sub GetConfigurationInformation()
        Try

            ' Get the current configuration file.
            Dim config As System.Configuration.Configuration = TryCast(ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None), Configuration)

            Console.WriteLine("Reading configuration information:")

            Dim evalContext As ContextInformation = TryCast(config.EvaluationContext, ContextInformation)
            Console.WriteLine("Machine level: {0}", evalContext.IsMachineLevel.ToString())

            Dim filePath As String = config.FilePath
            Console.WriteLine("File path: {0}", filePath)

            Dim hasFile As Boolean = config.HasFile
            Console.WriteLine("Has file: {0}", hasFile.ToString())


            Dim groups As ConfigurationSectionGroupCollection = config.SectionGroups
            Console.WriteLine("Groups: {0}", groups.Count.ToString())
            For Each group As ConfigurationSectionGroup In groups
                Console.WriteLine("Group Name: {0}", group.Name)
                ' Console.WriteLine("Group Type: {0}", group.Type);
            Next group


            Dim sections As ConfigurationSectionCollection = config.Sections
            Console.WriteLine("Sections: {0}", sections.Count.ToString())


        Catch err As ConfigurationErrorsException
            Console.WriteLine("GetConfigurationInformation: {0}", err.ToString())
        End Try

    End Sub
End Class

#End Region

#Region "Application Main"
'*** User Interaction Class ***//

' Obtain user's input and provide feedback.
' This class contains the application Main() function.
' It calls the ConfigurationManager methods based 
' on the user's selection.
Public Class ApplicationMain
    ' Display user's menu.
    Public Shared Sub UserMenu()
        Dim applicationName As String = Environment.GetCommandLineArgs()(0) & ".exe"
        Dim buffer As New StringBuilder()

        buffer.AppendLine("Application: " & applicationName)
        buffer.AppendLine("Please, make your selection.")
        buffer.AppendLine("?    -- Display help.")
        buffer.AppendLine("Q,q  -- Exit the application.")

        buffer.Append("1    -- Instantiate the")
        buffer.AppendLine(" Configuration class.")

        buffer.Append("2    -- Use GetSection(string) to read ")
        buffer.AppendLine(" a custom section.")

        buffer.Append("3    -- Use SaveAs methods")
        buffer.AppendLine(" to save the configuration file.")

        buffer.Append("4    -- Use AppSettings property to read")
        buffer.AppendLine(" the appSettings section.")
        buffer.Append("5    -- Use ConnectionStrings property to read")
        buffer.AppendLine(" the connectionStrings section.")

        buffer.Append("6    -- Use Configuration class properties")
        buffer.AppendLine(" to obtain configuration information.")

        Console.Write(buffer.ToString())
    End Sub

    ' Obtain user's input and provide
    ' feedback.
    Shared Sub Main(ByVal args() As String)
        ' Define user selection string.
        Dim selection As String

        ' Get the name of the application.
        Dim appName As String = Environment.GetCommandLineArgs()(0)


        ' Get user selection.
        Do

            UserMenu()
            Console.Write("> ")
            selection = Console.ReadLine()
            If selection <> String.Empty Then
                Exit Do
            End If
        Loop

        Do While selection.ToLower() <> "q"
            ' Process user's input.
            Select Case selection
                Case "1"
                    ' Show how to create an instance of the Configuration class.
                    UsingConfigurationClass.CreateConfigurationFile()

                Case "2"
                    ' Show how to use GetSection(string) method.
                    UsingConfigurationClass.GetCustomSection()

                Case "3"
                    ' Show how to use ConnectionStrings.
                    UsingConfigurationClass.SaveConfigurationFile()

                Case "4"
                    ' Show how to use the AppSettings property.
                    UsingConfigurationClass.GetSections("appSettings")

                Case "5"
                    ' Show how to use the ConnectionStrings property.
                    UsingConfigurationClass.GetSections("connectionStrings")

                Case "6"
                    ' Show how to obtain configuration file information.
                    UsingConfigurationClass.GetConfigurationInformation()


                Case Else
                    UserMenu()
            End Select
            Console.Write("> ")
            selection = Console.ReadLine()
        Loop
    End Sub
End Class
#End Region

注釈

構成設定は、構成ファイルの階層に格納されます。Configuration settings are stored in a hierarchy of configuration files. Configurationクラスのインスタンスは、すべてのアプリケーションまたは Web サイトなどの論理エンティティにまたは、コンピューターなどの特定の物理エンティティに適用される構成ファイルから構成設定のマージされたビューを表します。The Configuration class instance represents the merged view of the configuration settings from all of the configuration files that apply to a specific physical entity, such as a computer, or to a logical entity, such as an application or a Web site. 論理エンティティは、ローカル コンピューターまたはリモート サーバー上に存在します。The logical entity can exist on the local computer or on a remote server. 構成ファイルについては、次を参照してください。構成アプリASP.NET 構成ファイルします。For information about configuration files, see Configuring Apps and ASP.NET Configuration Files.

特定のエンティティに対する構成ファイルが存在しない場合、Configurationオブジェクトは、Machine.config ファイルによって定義された既定の構成設定を表します。When no configuration file exists for a specified entity, the Configuration object represents the default configuration settings as defined by the Machine.config file.

取得することができます、Configuration次のクラスを使用してオブジェクト。You can get a Configuration object by using the following classes:

返すメソッドの名前、Configurationオブジェクトの「開く」で開始します。The names of the methods that return a Configuration object begin with "Open".

構成設定を表す構成ファイルを生成することも、Configurationオブジェクト。You can also generate a configuration file that represents the configuration settings in a Configuration object. そのためには、次のいずれかのメソッドを使用します。To do this, use one of the following methods:

  • 呼び出す、Save新しい構成ファイルを作成します。Call the Save method to create a new configuration file.

  • 呼び出す、SaveAs別の場所で新しい構成ファイルを生成します。Call the SaveAs method to generate a new configuration file at another location.

構成ファイルを作成するメソッドの名前「保存」で始まります。The names of the methods that create configuration files begin with "Save".

注意

リモート コンピューター上の構成設定へのアクセスを有効にするには、Aspnet_regiis コマンド ライン ツールを使用します。To enable access to configuration settings on a remote computer, use the Aspnet_regiis command-line tool. このツールの詳細については、次を参照してください。 ASP.NET IIS 登録ツール (Aspnet_regiis.exe)します。For more information about this tool, see ASP.NET IIS Registration Tool (Aspnet_regiis.exe). 作成して、組み込みのセクションでは、.NET Framework に含まれる以外のカスタム構成設定にアクセスする方法についてを参照してくださいConfigurationSectionします。For information about creating and accessing custom configuration settings other than the intrinsic sections included in the .NET Framework, refer to ConfigurationSection.

注意 (継承者)

Configurationクラスは構成ファイルを編集するためのプログラムによるアクセスを提供します。The Configuration class provides programmatic access for editing configuration files. によって提供される"Open"メソッドのいずれかを使用する、WebConfigurationManagerクラスの Web アプリケーションか、ConfigurationManagerクライアント アプリケーションのクラス。You use one of the "Open" methods provided by the WebConfigurationManager class for Web applications or by the ConfigurationManager class for client applications. これらのメソッドを返す、Configurationオブジェクトで、さらにメソッドとプロパティを基になる構成ファイルの処理を提供します。These methods return a Configuration object, which in turn provides the methods and properties that handle the underlying configuration files. これらのファイルの読み取りまたは書き込みの構成情報にアクセスできます。You can access these files for reading or writing configuration information.

使用する、GetSection(String)メソッドまたはGetSectionGroup(String)構成情報を読み取ります。You use the GetSection(String) method or the GetSectionGroup(String) method to read configuration information. ユーザーまたはプロセスを読み取るは次のアクセス許可である必要がありますに注意してください。Note that the user or process that reads must have the following permissions: の現在の構成階層のレベルの構成ファイル読み取り権限。- Read permission on the configuration file at the current configuration hierarchy level.

-ファイルを読み取るすべての親のアクセス許可の構成。- Read permissions on all the parent configuration files.

アプリケーションでは、独自の構成に読み取り専用アクセスを必要とする場合は、使用することをお勧めしますが、 GetSection Web アプリケーションのメソッドのオーバー ロードします。If your application needs read-only access to its own configuration, it is recommended that you use the GetSection method overloads for Web applications. クライアント アプリケーションでは、使用、GetSection(String)メソッド。For client application, use the GetSection(String) method.

これらのメソッドへのアクセスを提供するよりも優れたパフォーマンス、現在のアプリケーションのキャッシュされた構成値には、Configurationクラス。These methods provide access to the cached configuration values for the current application, which has better performance than the Configuration class.

静的なを使用する場合GetSectionを path パラメーターを受け取るメソッドでは、path パラメーターが、アプリケーションを参照する必要があります、コードが実行されている場合は、パラメーターは無視され、現在実行中のアプリケーションの構成情報が返されます。If you use a static GetSection method that takes a path parameter, the path parameter must refer to the application in which the code is running, otherwise the parameter is ignored and configuration information for the currently running application is returned.

いずれかを使用する、Save構成情報を記述するメソッド。You use one of the Save methods to write configuration information. ユーザーまたはプロセスに書き込むは次のアクセス許可である必要がありますに注意してください。Note that the user or process that writes must have the following permissions: -構成ファイルと現在の構成階層のレベルのディレクトリに対する権限を作成します。- Write permission on the configuration file and directory at the current configuration hierarchy level.

-すべての構成ファイルのアクセス許可を読み取り。- Read permissions on all the configuration files.

プロパティ

AppSettings AppSettings AppSettings AppSettings

取得、AppSettingsSectionこれが適用されるオブジェクトの構成セクションConfigurationオブジェクト。Gets the AppSettingsSection object configuration section that applies to this Configuration object.

AssemblyStringTransformer AssemblyStringTransformer AssemblyStringTransformer AssemblyStringTransformer

構成ファイル内のアセンブリの文字列を変換するために使用する関数デリゲートを指定します。Specifies a function delegate that is used to transform assembly strings in configuration files.

ConnectionStrings ConnectionStrings ConnectionStrings ConnectionStrings

取得、ConnectionStringsSectionこれに適用される構成セクション オブジェクトConfigurationオブジェクト。Gets a ConnectionStringsSection configuration-section object that applies to this Configuration object.

EvaluationContext EvaluationContext EvaluationContext EvaluationContext

ContextInformation オブジェクトの Configuration オブジェクトを取得します。Gets the ContextInformation object for the Configuration object.

FilePath FilePath FilePath FilePath

これによって表される構成ファイルへの物理パスを取得します。Configurationオブジェクト。Gets the physical path to the configuration file represented by this Configuration object.

HasFile HasFile HasFile HasFile

これによって表されるリソースのファイルが存在するかどうかを示す値を取得しますConfigurationオブジェクト。Gets a value that indicates whether a file exists for the resource represented by this Configuration object.

Locations Locations Locations Locations

これで定義されている場所を取得Configurationオブジェクト。Gets the locations defined within this Configuration object.

NamespaceDeclared NamespaceDeclared NamespaceDeclared NamespaceDeclared

取得または構成ファイルに XML 名前空間があるかどうかを示す値を設定します。Gets or sets a value indicating whether the configuration file has an XML namespace.

RootSectionGroup RootSectionGroup RootSectionGroup RootSectionGroup

ルートを取得しますConfigurationSectionGroupこのConfigurationオブジェクト。Gets the root ConfigurationSectionGroup for this Configuration object.

SectionGroups SectionGroups SectionGroups SectionGroups

この構成で定義されているセクション グループのコレクションを取得します。Gets a collection of the section groups defined by this configuration.

Sections Sections Sections Sections

これで定義されたセクションのコレクションを取得しますConfigurationオブジェクト。Gets a collection of the sections defined by this Configuration object.

TargetFramework TargetFramework TargetFramework TargetFramework

バージョンを以前よりも現在は対象となる場合は、.NET Framework の対象となるバージョンを指定します。Specifies the targeted version of the .NET Framework when a version earlier than the current one is targeted.

TypeStringTransformer TypeStringTransformer TypeStringTransformer TypeStringTransformer

構成ファイル内の型の文字列を変換するために使用する関数デリゲートを指定します。Specifies a function delegate that is used to transform type strings in configuration files.

メソッド

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

指定したオブジェクトが、現在のオブジェクトと等しいかどうかを判断します。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

既定のハッシュ関数として機能します。Serves as the default hash function.

(Inherited from Object)
GetSection(String) GetSection(String) GetSection(String) GetSection(String)

指定した ConfigurationSection オブジェクトを返します。Returns the specified ConfigurationSection object.

GetSectionGroup(String) GetSectionGroup(String) GetSectionGroup(String) GetSectionGroup(String)

指定した取得ConfigurationSectionGroupオブジェクト。Gets the specified ConfigurationSectionGroup object.

GetType() GetType() GetType() GetType()

現在のインスタンスの Type を取得します。Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

現在の Object の簡易コピーを作成します。Creates a shallow copy of the current Object.

(Inherited from Object)
Save() Save() Save() Save()

これに含まれる構成設定を書き込みますConfigurationオブジェクトが現在の XML 構成ファイルにします。Writes the configuration settings contained within this Configuration object to the current XML configuration file.

Save(ConfigurationSaveMode) Save(ConfigurationSaveMode) Save(ConfigurationSaveMode) Save(ConfigurationSaveMode)

これに含まれる構成設定を書き込みますConfigurationオブジェクトが現在の XML 構成ファイルにします。Writes the configuration settings contained within this Configuration object to the current XML configuration file.

Save(ConfigurationSaveMode, Boolean) Save(ConfigurationSaveMode, Boolean) Save(ConfigurationSaveMode, Boolean) Save(ConfigurationSaveMode, Boolean)

これに含まれる構成設定を書き込みますConfigurationオブジェクトが現在の XML 構成ファイルにします。Writes the configuration settings contained within this Configuration object to the current XML configuration file.

SaveAs(String) SaveAs(String) SaveAs(String) SaveAs(String)

これに含まれる構成設定を書き込みますConfigurationオブジェクトを指定された XML 構成ファイルにします。Writes the configuration settings contained within this Configuration object to the specified XML configuration file.

SaveAs(String, ConfigurationSaveMode) SaveAs(String, ConfigurationSaveMode) SaveAs(String, ConfigurationSaveMode) SaveAs(String, ConfigurationSaveMode)

これに含まれる構成設定を書き込みますConfigurationオブジェクトを指定された XML 構成ファイルにします。Writes the configuration settings contained within this Configuration object to the specified XML configuration file.

SaveAs(String, ConfigurationSaveMode, Boolean) SaveAs(String, ConfigurationSaveMode, Boolean) SaveAs(String, ConfigurationSaveMode, Boolean) SaveAs(String, ConfigurationSaveMode, Boolean)

これに含まれる構成設定を書き込みますConfigurationオブジェクトを指定された XML 構成ファイルにします。Writes the configuration settings contained within this Configuration object to the specified XML configuration file.

ToString() ToString() ToString() ToString()

現在のオブジェクトを表す文字列を返します。Returns a string that represents the current object.

(Inherited from Object)

適用対象

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