DesignTimeResourceProviderFactoryAttribute クラス

.NET Framework クラス ライブラリ リファレンス

DesignTimeResourceProviderFactoryAttribute クラス

メモ : このクラスは、.NET Framework version 2.0 で新しく追加されたものです。

デザイン時のリソース プロバイダ ファクトリの型を指定します。このクラスは継承できません。

名前空間: System.Web.Compilation
アセンブリ: System.Web (system.web.dll 内)
構文

Visual Basic (宣言)

<AttributeUsageAttribute(AttributeTargets.Class)> _
Public NotInheritable Class
 DesignTimeResourceProviderFactoryAttribute
    Inherits Attribute

Visual Basic (使用法)

Dim instance As DesignTimeResourceProviderFactoryAttribute

C#

[AttributeUsageAttribute(AttributeTargets.Class)] 
public sealed class DesignTimeResourceProviderFactoryAttribute
 : Attribute

C++

[AttributeUsageAttribute(AttributeTargets::Class)] 
public ref class DesignTimeResourceProviderFactoryAttribute
 sealed : public Attribute

J#

/** @attribute AttributeUsageAttribute(AttributeTargets.Class) */ 
public final class DesignTimeResourceProviderFactoryAttribute
 extends Attribute

JScript

AttributeUsageAttribute(AttributeTargets.Class) 
public final class DesignTimeResourceProviderFactoryAttribute
 extends Attribute

解説

DesignTimeResourceProviderFactoryAttribute クラスを使用すると、ResourceProviderFactory オブジェクトで、関連する DesignTimeResourceProviderFactory オブジェクトの型を指定できます。DesignTimeResourceProviderFactory クラスは、リソースの読み書きに使用するデザイン時プロバイダの作成に使用します。Microsoft Visual Studio 2005 内で、[ツール] メニューの [ローカル リソースの生成] コマンドを使用して、デザイン時にリソースを作成できます。

使用例

カスタマイズされたリソース プロバイダ ファクトリが DesignTimeResourceProviderFactoryAttribute 属性を使用して、カスタマイズされたデザイン時リソース プロバイダ ファクトリを指定するコード例を次に示します。この例には、カスタマイズされたデザイン時リソース プロバイダ ファクトリの実装に必要なコードは含まれていません。

Visual Basic

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Web.Compilation
Imports System.Resources
Imports System.Globalization
Imports System.Collections
Imports System.Reflection
Imports System.Web.UI.Design
Namespace CustomResourceProviders
    <DesignTimeResourceProviderFactoryAttribute(GetType(CustomDesignTimeResourceProviderFactory))>
 _
    Public Class CustomResourceProviderFactory
        Inherits ResourceProviderFactory
        Public Overrides Function
 CreateGlobalResourceProvider(ByVal classname As
 String) As IResourceProvider
            Return New CustomResourceProvider(Nothing,
 classname)
        End Function
        Public Overrides Function
 CreateLocalResourceProvider(ByVal virtualPath As
 String) As IResourceProvider
            Return New CustomResourceProvider(virtualPath,
 Nothing)
        End Function
    End Class

    ' Define the resource provider for global and local resources.
    Friend Class CustomResourceProvider
        Implements IResourceProvider
        Dim _virtualPath As String
        Dim _className As String

        Public Sub New(ByVal
 virtualPath As String, ByVal
 classname As String)
            _virtualPath = virtualPath
            _className = classname
        End Sub

        Private Function GetResourceCache(ByVal
 culturename As String) As
 IDictionary
            Return System.Web.HttpContext.Current.Cache(culturename)
        End Function

        Function GetObject(ByVal resourceKey
 As String, ByVal culture
 As CultureInfo) As Object Implements IResourceProvider.GetObject
            Dim value As Object
            Dim cultureName As String
            cultureName = Nothing
            If (IsNothing(culture)) Then
                cultureName = CultureInfo.CurrentUICulture.Name
            Else
                cultureName = culture.Name
            End If

            value = GetResourceCache(cultureName)(resourceKey)
            If (value = Nothing) Then
                value = GetResourceCache(Nothing)(resourceKey)
            End If
            Return value
        End Function


        ReadOnly Property ResourceReader()
 As IResourceReader Implements IResourceProvider.ResourceReader
            Get
                Dim cultureName As String
                Dim currentUICulture As CultureInfo
                cultureName = Nothing
                currentUICulture = CultureInfo.CurrentUICulture
                If (Not (String.Equals(currentUICulture.Name,
 CultureInfo.InstalledUICulture.Name))) Then
                    cultureName = currentUICulture.Name
                End If

                Return New CustomResourceReader(GetResourceCache(cultureName))
            End Get
        End Property
    End Class

    Friend NotInheritable Class
 CustomResourceReader
        Implements IResourceReader
        Private _resources As IDictionary

        Public Sub New(ByVal
 resources As IDictionary)
            _resources = resources
        End Sub

        Function GetEnumerator1() As IDictionaryEnumerator
 Implements IResourceReader.GetEnumerator
            Return _resources.GetEnumerator()
        End Function

        Sub Close() Implements IResourceReader.Close

        End Sub

        Function GetEnumerator() As IEnumerator
 Implements IEnumerable.GetEnumerator
            Return _resources.GetEnumerator()
        End Function

        Sub Dispose() Implements IDisposable.Dispose

        End Sub
    End Class

    Public Class CustomDesignTimeResourceProviderFactory
        Inherits DesignTimeResourceProviderFactory

        Private _localResourceProvider As New
 CustomDesignTimeLocalResourceProvider
        Private _localResourceWriter As New
 CustomDesignTimeLocalResourceWriter
        Private _globalResourceProvider As
 New CustomDesignTimeGlobalResourceProvider

        Public Overrides Function
 CreateDesignTimeLocalResourceProvider(ByVal serviceProvider
 As IServiceProvider) As IResourceProvider
            ' Return an IResourceProvider.
            If (_localResourceProvider Is Nothing)
 Then
                _localResourceProvider = New CustomDesignTimeLocalResourceProvider
            End If
            Return _localResourceProvider
        End Function
        Public Overrides Function
 CreateDesignTimeLocalResourceWriter(ByVal serviceProvider As
 IServiceProvider) As IDesignTimeResourceWriter
            ' Return an IDesignTimeResourceWriter.
            If (_localResourceWriter Is Nothing)
 Then
                _localResourceWriter = New CustomDesignTimeLocalResourceWriter
            End If
            Return _localResourceWriter
        End Function
        Public Overrides Function
 CreateDesignTimeGlobalResourceProvider(ByVal serviceProvider
 As IServiceProvider, ByVal classKey As String) As IResourceProvider
            ' Return an IResourceProvider.
            If (_globalResourceProvider Is
 Nothing) Then
                _globalResourceProvider = New CustomDesignTimeGlobalResourceProvider
            End If
            Return _globalResourceProvider
        End Function
    End Class

C#

namespace CustomResourceProviders
{
    using System;
    using System.Collections.Generic;
    using System.Text;
    using System.Web.Compilation;
    using System.Resources;
    using System.Globalization;
    using System.Collections;
    using System.Reflection;
    using System.Web.UI.Design;

    [
        DesignTimeResourceProviderFactoryAttribute(
            typeof(CustomDesignTimeResourceProviderFactory))
    ]
    public class CustomResourceProviderFactory
 : ResourceProviderFactory
    {
        public override IResourceProvider
          CreateGlobalResourceProvider(string classname)
        {
            return new CustomResourceProvider(null,
 classname);
        }
        public override IResourceProvider
          CreateLocalResourceProvider(string virtualPath)
        {
            return new CustomResourceProvider(virtualPath,
 null);
        }
    }

    // Define the resource provider for global and local resources.
    internal class CustomResourceProvider : IResourceProvider
    {
        string _virtualPath;
        string _className;

        public CustomResourceProvider(string
 virtualPath, string classname)
        {
            _virtualPath = virtualPath;
            _className = classname;
        }

        private IDictionary GetResourceCache(string
 culturename)
        {
            return (IDictionary)
                System.Web.HttpContext.Current.Cache[culturename];
        }

        object IResourceProvider.GetObject
            (string resourceKey, CultureInfo culture)
        {
            object value;

            string cultureName = null;
            if (culture != null)
            {
                cultureName = culture.Name;
            }
            else
            {
                cultureName = CultureInfo.CurrentUICulture.Name;
            }

            value = GetResourceCache(cultureName)[resourceKey];
            if (value == null)
            {
                value = GetResourceCache(null)[resourceKey];
            }
            return value;
        }


        IResourceReader IResourceProvider.ResourceReader
        {
            get
            {
                string cultureName = null;
                CultureInfo currentUICulture = CultureInfo.CurrentUICulture;
                if (!String.Equals(currentUICulture.Name,
                    CultureInfo.InstalledUICulture.Name))
                {
                    cultureName = currentUICulture.Name;
                }

                return new CustomResourceReader
                    (GetResourceCache(cultureName));
            }
        }
    }


    internal sealed class CustomResourceReader : IResourceReader
    {
        private IDictionary _resources;

        public CustomResourceReader(IDictionary resources)
        {
            _resources = resources;
        }

        IDictionaryEnumerator IResourceReader.GetEnumerator()
        {
            return _resources.GetEnumerator();
        }

        void IResourceReader.Close() { }

        IEnumerator IEnumerable.GetEnumerator()
        {
            return _resources.GetEnumerator();
        }

        void IDisposable.Dispose() { return;
 }
    }

    
    public class CustomDesignTimeResourceProviderFactory
 :
        DesignTimeResourceProviderFactory
    {
        private CustomDesignTimeLocalResourceProvider _localResourceProvider;
        private CustomDesignTimeLocalResourceWriter _localResourceWriter;
        private CustomDesignTimeGlobalResourceProvider _globalResourceProvider;

        public override IResourceProvider
            CreateDesignTimeLocalResourceProvider(IServiceProvider serviceProvider)
        {
            // Return an IResourceProvider.
            if (_localResourceProvider == null)
            {
                _localResourceProvider = new CustomDesignTimeLocalResourceProvider();
            }
            return _localResourceProvider;
        }

        public override IDesignTimeResourceWriter
            CreateDesignTimeLocalResourceWriter(IServiceProvider serviceProvider)
        {
            // Return an IDesignTimeResourceWriter.
            if (_localResourceWriter == null)
            {
                _localResourceWriter = new CustomDesignTimeLocalResourceWriter();
            }
            return _localResourceWriter;
        }

        public override IResourceProvider
            CreateDesignTimeGlobalResourceProvider(IServiceProvider serviceProvider
,
                    string classKey)
        {
            // Return an IResourceProvider.
            if (_globalResourceProvider == null)
            {
                _globalResourceProvider = new CustomDesignTimeGlobalResourceProvider();
            }
            return _globalResourceProvider;
        }
    }

.NET Framework のセキュリティ

• AspNetHostingPermission  (ホスト環境での動作に必要なアクセス許可)Minimal (関連する列挙体)

継承階層

System.Object
   System.Attribute
    System.Web.Compilation.DesignTimeResourceProviderFactoryAttribute

スレッド セーフ

この型の public static (Visual Basic では Shared) メンバはすべて、スレッド セーフです。インスタンス メンバの場合は、スレッド セーフであるとは限りません。

プラットフォーム

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

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0

参照

関連項目
DesignTimeResourceProviderFactoryAttribute メンバ
System.Web.Compilation 名前空間
ResourceProviderFactory
DesignTimeResourceProviderFactory
Attribute