LocalizationExtenderProvider Class

obsoleteCodeEntityT:System.ComponentModel.Design.Serialization.CodeDomLocalizationProvider Note: This API is now obsolete.

Provides design-time support for localization features to a root designer.

Namespace:   System.ComponentModel.Design
Assembly:  System.Design (in System.Design.dll)


<ObsoleteAttribute("This class has been deprecated. Use CodeDomLocalizationProvider instead.  http://go.microsoft.com/fwlink/?linkid=14202")>
Public Class LocalizationExtenderProvider
	Implements IExtenderProvider, IDisposable

System_CAPS_pubmethodLocalizationExtenderProvider(ISite, IComponent)

Initializes a new instance of the LocalizationExtenderProvider class using the specified service provider and base component.


Indicates whether this object can provide its extender properties to the specified object.


Disposes of the resources (other than memory) used by the LocalizationExtenderProvider.


Releases the unmanaged resources used by the LocalizationExtenderProvider and optionally releases the managed resources.


Determines whether the specified object is equal to the current object.(Inherited from Object.)


Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)


Serves as the default hash function. (Inherited from Object.)


Gets the current resource culture for the specified object.


Gets the default resource culture to use when initializing the values of a localized object at design time.


Gets a value indicating whether the specified object supports resource localization.


Gets the Type of the current instance.(Inherited from Object.)


Creates a shallow copy of the current Object.(Inherited from Object.)


Resets the resource culture for the specified object.

System_CAPS_pubmethodSetLanguage(Object, CultureInfo)

Sets the current resource culture for the specified object to the specified resource culture.

System_CAPS_pubmethodSetLocalizable(Object, Boolean)

Sets a value indicating whether the specified object supports localized resources.


Gets a value indicating whether the specified object must have its localizable values persisted in a resource.


Returns a string that represents the current object.(Inherited from Object.)

LocalizationExtenderProvider can extend an IRootDesigner with a set of properties and methods that provide support for the .NET Framework localization architecture. For more about using resources, see Localization.

The localization support architecture enables designers to initialize component properties using resource files that can be swapped at run time to support a variety of languages, culture-specific styles and dynamically configurable features. You can use the methods of this class to enable designers and code generating serializers to load from resources and build initialization code that uses localization features.

The default serializers that ship with Visual Studio are already capable of localizing components and controls, but they only do so if they locate support for the .NET Framework localization architecture. To detect the presence of localization support, the serialization system must locate a public Boolean property named "Localizable" on the root designer component. If a serializer finds this property, it searches for a property of type CultureInfo named "Language" to determine the current resource configuration. Default serializers use these properties to determine if it should localize any localizable resources of the component, and if so, what CultureInfo format the resource information should be saved in.

The following code example adds a LocalizationExtenderProvider to a component.

' Adds a LocalizationExtenderProvider that provides localization support properties to the specified component.
extender = New LocalizationExtenderProvider(Me.component_.Site, Me.component_)

The following code example includes an example component and designer. The designer uses a LocalizationExtenderProvider to add localization support properties for the component.

Imports System
Imports System.Collections
Imports System.ComponentModel
Imports System.ComponentModel.Design
Imports System.Diagnostics
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Windows.Forms.Design

' This example demonstrates adding localization support to a component hierarchy from a 
' custom IRootDesigner using the LocalizationExtenderProvider class.

' RootViewDesignerComponent is a component associated with the SampleRootDesigner
' IRootDesigner that provides LocalizationExtenderProvider localization support.
' This derived class is included at the top of this example to enable 
' easy launching of designer view without having to put the class in its own file.
Public Class RootViewDesignerComponent
    Inherits RootDesignedComponent

    Public Sub New()
    End Sub
End Class

' The following attribute associates the RootDesignedComponent with the RootDesignedComponent component.
<Designer(GetType(SampleRootDesigner), GetType(IRootDesigner))> _
Public Class RootDesignedComponent
    Inherits Component

    Public Sub New()
    End Sub
End Class

' Example IRootDesigner implementation demonstrates LocalizationExtenderProvider support.
Friend Class SampleRootDesigner
    Implements IRootDesigner

    ' RootDesignerView Control provides a full region designer view for this root designer's associated component.
    Private m_view As RootDesignerView
    ' Stores reference to the LocalizationExtenderProvider this designer adds, in order to remove it on Dispose.
    Private extender As LocalizationExtenderProvider
    ' Internally stores the IDesigner's component reference
    Private component_ As IComponent

    ' Adds a LocalizationExtenderProvider for the component this designer is initialized to support.
    Public Sub Initialize(ByVal component As System.ComponentModel.IComponent) Implements IRootDesigner.Initialize
        Me.component_ = component

        ' If no extender from this designer is active...
        If extender Is Nothing Then
            ' Adds a LocalizationExtenderProvider that provides localization support properties to the specified component.
            extender = New LocalizationExtenderProvider(Me.component_.Site, Me.component_)
        End If
    End Sub

    ' Provides a RootDesignerView object that supports ViewTechnology.WindowsForms.
    Function GetView(ByVal technology As ViewTechnology) As Object Implements IRootDesigner.GetView

        If technology <> ViewTechnology.WindowsForms Then
            Throw New ArgumentException("Not a supported view technology", "technology")
        End If
        If m_view Is Nothing Then
            ' Create the view control. In this example, a Control of type RootDesignerView is used.
            ' A WindowsForms ViewTechnology view provider requires a class that inherits from Control.
            m_view = New RootDesignerView(Me, Me.Component)
        End If
        Return m_view

    End Function

    ' This designer supports the WindowsForms view technology.
    ReadOnly Property SupportedTechnologies() As ViewTechnology() Implements IRootDesigner.SupportedTechnologies
            Return New ViewTechnology() {ViewTechnology.WindowsForms}
        End Get
    End Property

    ' If a LocalizationExtenderProvider has been added, removes the extender provider.
    Protected Overloads Sub Dispose(ByVal disposing As Boolean)
        ' If an extender has been added, remove it
        If (extender IsNot Nothing) Then
            ' Disposes of the extender provider.  The extender 
            ' provider removes itself from the extender provider
            ' service when it is disposed.
            extender = Nothing
        End If
    End Sub

    ' Empty IDesigner interface property and method implementations
    Public ReadOnly Property Verbs() As System.ComponentModel.Design.DesignerVerbCollection Implements IDesigner.Verbs
            Return Nothing
        End Get
    End Property

    Public ReadOnly Property Component() As System.ComponentModel.IComponent Implements IRootDesigner.Component
            Return Me.component_
        End Get
    End Property

    Public Sub DoDefaultAction() Implements IDesigner.DoDefaultAction
    End Sub

    Public Overloads Sub Dispose() Implements IDisposable.Dispose
    End Sub

    ' RootDesignerView is a simple control that will be displayed in the designer window.
    Private Class RootDesignerView
        Inherits Control
        Private m_designer As SampleRootDesigner
        Private comp As IComponent

        Public Sub New(ByVal designer As SampleRootDesigner, ByVal component As IComponent)
            m_designer = designer
            Me.comp = component
            BackColor = Color.Blue
            Font = New Font(FontFamily.GenericMonospace, 12)
        End Sub

        ' Displays the name of the component and the name of the assembly of the component 
        ' that this root designer is providing support for.
        Protected Overrides Sub OnPaint(ByVal pe As PaintEventArgs)

            If (m_designer IsNot Nothing) AndAlso (comp IsNot Nothing) Then
                ' Draws the name of the component in large letters.
                pe.Graphics.DrawString("Root Designer View", Font, Brushes.Yellow, 8, 4)
                pe.Graphics.DrawString("Design Name  : " + comp.Site.Name, New Font("Arial", 10), Brushes.Yellow, 8, 28)

                ' Uses the site of the component to acquire an ISelectionService and sets the property grid focus to the component.
                Dim selectionService As ISelectionService = CType(comp.Site.GetService(GetType(ISelectionService)), ISelectionService)
                If (selectionService IsNot Nothing) Then
                    selectionService.SetSelectedComponents(New IComponent() {m_designer.Component})
                End If
            End If
        End Sub
    End Class

End Class

.NET Framework
Available since 1.1

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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