GenericEnumConverter クラス

定義

public ref class GenericEnumConverter sealed : System::Configuration::ConfigurationConverterBase

public sealed class GenericEnumConverter : System.Configuration.ConfigurationConverterBase

type GenericEnumConverter = class
    inherit ConfigurationConverterBase

Public NotInheritable Class GenericEnumConverter
Inherits ConfigurationConverterBase

継承

Object

TypeConverter

ConfigurationConverterBase

GenericEnumConverter

例

次のコード例は、 GenericEnumConverter 型を使用するカスタム セクション プロパティにアクセスする方法を示しています。

using System;
using System.IO;
using System.ComponentModel;
using System.Configuration;

namespace Samples.AspNet
{
  
    public sealed class UsingGenericEnumConverter
    {
        public static void GetPermission()
        {
            try
            {
                CustomSection section =
                    ConfigurationManager.GetSection("CustomSection")
                    as CustomSection;
                
                Console.WriteLine("Default Permission: {0}", 
                    section.Permission.ToString());
            }
            catch (System.Exception e)
            {
                Console.WriteLine(e.Message);
            }
        }

        public static void SetPermission()
        {
            try
            {
                System.Configuration.Configuration config =
                  ConfigurationManager.OpenExeConfiguration(
                  ConfigurationUserLevel.None);

                CustomSection section =
                    config.Sections.Get("CustomSection")
                    as CustomSection;

                section.Permission = 
                    CustomSection.Permissions.FullControl;

                section.SectionInformation.ForceSave = true;
                config.Save(ConfigurationSaveMode.Full); 
                config.Save();

                Console.WriteLine("Current Protection: {0}",
                    section.Permission.ToString());
            }
            catch (System.Exception e)
            {
                Console.WriteLine(e.Message);
            }
        }
    }
}

Imports System.IO
Imports System.ComponentModel
Imports System.Configuration




NotInheritable Public Class UsingGenericEnumConverter
    
    Public Shared Sub GetPermission() 
        Try
            Dim section As CustomSection = _
            ConfigurationManager.GetSection("CustomSection")
            Console.WriteLine("Default Permission: {0}", _
            section.Permission.ToString())
        Catch e As System.Exception
            Console.WriteLine(e.Message)
        End Try
    
    End Sub
    
    
    Public Shared Sub SetPermission() 
        Try
            Dim config _
            As System.Configuration.Configuration = _
            ConfigurationManager.OpenExeConfiguration( _
            ConfigurationUserLevel.None)
            
            Dim section As CustomSection = _
            config.Sections.Get("CustomSection")
            
            section.Permission = _
            CustomSection.Permissions.FullControl
            
            section.SectionInformation.ForceSave = True
            config.Save(ConfigurationSaveMode.Full)
            config.Save()
            
            Console.WriteLine( _
            "Current Protection: {0}", _
            section.Permission.ToString())
        Catch e As System.Exception
            Console.WriteLine(e.Message)
        End Try
    
    End Sub
End Class

次のコード例は、前の例でアクセスするカスタム列挙子プロパティを定義する方法を示しています。 GenericEnumConverter型を指定する必要はありません。システムによって暗黙的に呼び出されます。

public enum Permissions
{
    FullControl         = 0,
    Modify              = 1,
    ReadExecute         = 2,
    Read                = 3,
    Write               = 4,
    SpecialPermissions  = 5
}

[ConfigurationProperty("permission", DefaultValue = Permissions.Read)]
public Permissions Permission
{
    get
    {
        return (Permissions)this["permission"];
    }

    set
    {
        this["permission"] = value;
    }
}

Public Enum Permissions
    FullControl = 0
    Modify = 1
    ReadExecute = 2
    Read = 3
    Write = 4
    SpecialPermissions = 5
End Enum 'Permissions


<ConfigurationProperty("permission", _
DefaultValue:=Permissions.Read)> _
Public Property Permission() As Permissions
    Get
        Return CType(Me("permission"), Permissions)
    End Get

    Set(ByVal value As Permissions)
        Me("permission") = Value
    End Set
End Property

次の例は、前の例で使用した構成の抜粋です。

<?xml version="1.0" encoding="utf-8"?>
<configuration>

  <configSections>
    <section name="CustomSection"
      type="Samples.AspNet.CustomSection,
      ConfigurationConverters,
      Version=1.0.0.0, Culture=neutral,
      PublicKeyToken=null"
      allowDefinition="Everywhere"
      allowExeDefinition="MachineToApplication"
      restartOnExternalChanges="true" />
  </configSections>

  <CustomSection fileName="default.txt" maxIdleTime="90" timeDelay="infinite" cdStr="str0, str1" permission="Read" maxUsers="Infinite"/>

</configuration>

注釈

この型は、他のすべての構成コンバーター型と同様に、構成ファイルで見つかった文字列を、関連する厳密に型指定されたプロパティとの間で変換します。

特に、 GenericEnumConverter オブジェクトは、構成プロパティに割り当てられた String 値を Enum 値に変換します。その逆も同様です。

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