Ouch@點部落

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Windows.Data;
using System.Windows.Forms;

public class CulturesHelper
{
    private static bool _isFoundInstalledCultures = false;

    private static List<CultureInfo> _supportedCultures = new List<CultureInfo>();

    private static ObjectDataProvider _objectDataProvider;

    private static CultureInfo _designTimeCulture = new CultureInfo( "en-US" );

    public static List<CultureInfo> SupportedCultures
    {
        get
        {
            return _supportedCultures;
        }
    }

    public CulturesHelper()
    {
        if( !_isFoundInstalledCultures )
        {

            CultureInfo cultureInfo = new CultureInfo( "" );

            foreach( string dir in Directory.GetDirectories( System.Windows.Forms.Application.StartupPath ) )
            {
                try
                {

                    DirectoryInfo dirinfo = new DirectoryInfo( dir );
                    cultureInfo = CultureInfo.GetCultureInfo( dirinfo.Name );

                    if( dirinfo.GetFiles( Path.GetFileNameWithoutExtension( System.Windows.Forms.Application.ExecutablePath ) + ".resources.dll" ).Length > 0 )
                    {
                        _supportedCultures.Add( cultureInfo );
                    }
                }
                catch( ArgumentException )
                {
                }
            }

            if( DesignerProperties.GetIsInDesignMode( new DependencyObject() ) )
            {
                Properties.Resources.Culture = _designTimeCulture;
                Properties.Settings.Default.DefaultCulture = _designTimeCulture;
            }
            else if( _supportedCultures.Count > 0 && Properties.Settings.Default.DefaultCulture != null )
            {
                Properties.Resources.Culture = Properties.Settings.Default.DefaultCulture;
            }

            _isFoundInstalledCultures = true;
        }
    }

    public Properties.Resources GetResourceInstance()
    {
        return new Properties.Resources();
    }

    public Properties.Resources GetResourceInstance( string cultureName )
    {
        ChangeCulture( new CultureInfo( cultureName ) );

        return new Properties.Resources();
    }


    public static ObjectDataProvider ResourceProvider
    {
        get
        {
            if( _objectDataProvider == null )
            {
                _objectDataProvider = ( ObjectDataProvider ) App.Current.FindResource( "Resources" );
            }
            return _objectDataProvider;
        }
    }

    public static void ChangeCulture( CultureInfo culture )
    {
        if( _supportedCultures.Contains( culture ) )
        {
            Properties.Resources.Culture = culture;
            Properties.Settings.Default.DefaultCulture = culture;
            Properties.Settings.Default.Save();

            ResourceProvider.Refresh();
        }
    }
}

<Window x:Class="Wpf_ObjectDataSource.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
		xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
		xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
		xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignWidth="800"
		d:DesignHeight="600" Title="MainWindow" Height="Auto" Width="Auto">
	<Grid>
		<Border BorderBrush="#FF646464" BorderThickness="2" HorizontalAlignment="Center" Height="300"
				VerticalAlignment="Center" Width="400" CornerRadius="10" Background="White">
			<Border.Effect>
				<DropShadowEffect Opacity="0.5" />
			</Border.Effect>
			<Grid>
				<Grid.ColumnDefinitions>
					<ColumnDefinition Width="125" />
					<ColumnDefinition Width="0.646*" />
				</Grid.ColumnDefinitions>
				<Grid.RowDefinitions>
					<RowDefinition Height="0.2*" />
					<RowDefinition Height="0.2*" />
					<RowDefinition Height="0.2*" />
					<RowDefinition Height="0.2*" />
					<RowDefinition Height="0.2*" />
				</Grid.RowDefinitions>
				<TextBlock x:Name="textBlock" HorizontalAlignment="Center" TextWrapping="Wrap"
						VerticalAlignment="Center" Grid.ColumnSpan="2" Text="WPF Multilingual Sample" FontSize="24"
						Foreground="#FF323232" />
				<TextBlock x:Name="textBlock3" TextWrapping="Wrap"
						Text="{Binding Languages, Source={StaticResource Resources}}" HorizontalAlignment="Left"
						VerticalAlignment="Center" Grid.Row="1" Margin="20,0,0,0" FontSize="16" />
				<ComboBox x:Name="comboBox" d:LayoutOverrides="Height" Grid.Row="1" Grid.Column="1"
						VerticalAlignment="Center" Margin="10" FontSize="16"
						ItemsSource="{Binding SupportedCultures, Source={StaticResource CultureResourcesDS}}"
						DisplayMemberPath="DisplayName" />
				<TextBlock x:Name="textBlock2" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center"
						Grid.Row="2" Margin="20,0,0,0" FontSize="16"
						Text="{Binding UserAccount, Source={StaticResource Resources}}" />
				<TextBox x:Name="textBox" TextWrapping="Wrap" Grid.Column="1" Grid.Row="2" Margin="10" FontSize="16"
						VerticalAlignment="Center" />
				<TextBlock x:Name="textBlock1" TextWrapping="Wrap" HorizontalAlignment="Left" VerticalAlignment="Center"
						Grid.Row="3" Margin="20,0,0,0" FontSize="16"
						Text="{Binding Password, Source={StaticResource Resources}}" />
				<TextBox x:Name="textBox1" TextWrapping="Wrap" Grid.Row="3" Grid.Column="1" Margin="10" FontSize="16"
						VerticalAlignment="Center" />
				<StackPanel Grid.Row="4" Grid.ColumnSpan="2" VerticalAlignment="Center" HorizontalAlignment="Center"
						Orientation="Horizontal">
					<Button x:Name="button" Content="{Binding Ok, Source={StaticResource Resources}}" Width="75"
							Margin="10" FontSize="16" />
					<Button x:Name="button1" Content="{Binding Cancel, Source={StaticResource Resources}}" Width="75"
							Margin="10" FontSize="16" />
				</StackPanel>
			</Grid>
		</Border>
	</Grid>
</Window>