DesignTimeResourceProviderFactoryAttribute 類別

參考

定義

命名空間:: System.Web.Compilation

組件:: System.Web.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

指定設計階段的資源提供者 Factory 型別。此類別無法獲得繼承。

public ref class DesignTimeResourceProviderFactoryAttribute sealed : Attribute

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

[<System.AttributeUsage(System.AttributeTargets.Class)>]
type DesignTimeResourceProviderFactoryAttribute = class
    inherit Attribute

Public NotInheritable Class DesignTimeResourceProviderFactoryAttribute
Inherits Attribute

繼承: Object

Attribute
DesignTimeResourceProviderFactoryAttribute

屬性: AttributeUsageAttribute

範例

下列程式碼範例示範自訂的資源提供者處理站，可透過 DesignTimeResourceProviderFactoryAttribute 屬性指定自訂的設計階段資源提供者處理站。此範例不包含實作自訂設計階段資源提供者處理站所需的程式碼。

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];
            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.
            _localResourceProvider ??= new CustomDesignTimeLocalResourceProvider();
            return _localResourceProvider;
        }

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

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

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

備註

類別 DesignTimeResourceProviderFactoryAttribute 可讓 ResourceProviderFactory 物件指定相關聯 DesignTimeResourceProviderFactory 物件的型別。類別 DesignTimeResourceProviderFactory 可用來建立用於讀取和寫入資源的設計階段提供者。在 Microsoft Visual Studio 2005 中，開發人員可以使用 [工具] 功能表上的 [產生本機資源] 命令，在設計階段期間建立資源。

建構函式

DesignTimeResourceProviderFactoryAttribute(String)	使用設定為指定 Factory 型別名稱的屬性，初始化 DesignTimeResourceProviderFactoryAttribute 類別的新執行個體。
DesignTimeResourceProviderFactoryAttribute(Type)	使用設定為指定 Factory 型別之限定名稱 (Qualified Name) 的屬性，初始化 DesignTimeResourceProviderFactoryAttribute 類別的新執行個體。

屬性

FactoryTypeName	取得 Factory 型別名稱的值。
TypeId	在衍生類別中實作時，取得這個 Attribute 的唯一識別碼。 (繼承來源 Attribute)

方法

Equals(Object)	傳回值，這個值指出此執行個體是否與指定的物件相等。 (繼承來源 Attribute)
GetHashCode()	傳回這個執行個體的雜湊碼。 (繼承來源 Attribute)
GetType()	取得目前執行個體的 Type。 (繼承來源 Object)
IsDefaultAttribute()	判斷是否使用預設提供者。
Match(Object)	在衍生類別中覆寫時，會傳回值，表示這個執行個體是否等於指定物件。 (繼承來源 Attribute)
MemberwiseClone()	建立目前 Object 的淺層複製。 (繼承來源 Object)
ToString()	傳回代表目前物件的字串。 (繼承來源 Object)

明確介面實作

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)	將一組名稱對應至一組對應的分派識別項 (Dispatch Identifier)。 (繼承來源 Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)	擷取物件的類型資訊，可以用來取得介面的類型資訊。 (繼承來源 Attribute)
_Attribute.GetTypeInfoCount(UInt32)	擷取物件提供的類型資訊介面數目 (0 或 1)。 (繼承來源 Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)	提供物件所公開的屬性和方法的存取權。 (繼承來源 Attribute)

適用於

DesignTimeResourceProviderFactoryAttribute 類別

定義

範例

備註

建構函式

屬性

方法

明確介面實作

適用於

另請參閱

意見反應

其他資源