使用 WPFLocalizationExtension 的 DataTemplate 本地化
本文关键字:本地化 DataTemplate WPFLocalizationExtension 使用 | 更新日期: 2023-09-27 18:34:04
我正在使用WPFLocalizationExtension来本地化C#/。Net4.5应用程序,但我无法使用自定义DataTemplate
本地化下拉菜单,因为我无法使用DisplayMemberPath
。对于普通的下拉本地化,其工作原理如下:
<telerik:RadComboBox ItemsSource="{Binding GlassColors}"
SelectedValue="{Binding Ampule.ID_GlassColor, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
SelectedValuePath="ID_GlassColor"
DisplayMemberPath="{lang:Loc dmp_GlassColor}"/>
上面的ComboBox
示例链接到包含语言的数据库表。显示的语言由本地化DisplayMemberPath
更改。这种方法非常简单,我可以推荐给其他人。它如何不适用于使用自定义DataTemplate
的组合框.请参阅以下示例:
<telerik:RadComboBox ItemsSource="{Binding PackagingTypesFilter}"
SelectedValue="{Binding SelectedPackagingTypeFilter}"
SelectedValuePath="ID_PackagingType">
<telerik:RadComboBox.ItemTemplate>
<DataTemplate DataType="{x:Type model:Tbl_PackagingMaster_ID_PackagingType}">
<Grid VerticalAlignment="Center" HorizontalAlignment="Left">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="24" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Image Source="{Binding TypeIcon, Converter={StaticResource StringToUriConverter}}" VerticalAlignment="Top" Grid.Column="0" Height="14" Margin="2" />
<TextBlock Text="{Binding PackagingTypeDescription}" Style="{StaticResource TextBlockMediumSmallBlackStyle}" Grid.Column="1"/>
</Grid>
</DataTemplate>
</telerik:RadComboBox.ItemTemplate>
</telerik:RadComboBox>
ItemSource
是一个Collection
,其中PackagingTypeDescription
包含英语,PackagingTypeDescriptionGerman
包含德语描述。
如何本地化上面的代码示例?
我用TemplateSelector
解决了这个问题。
这是TemplateSelector
类:
using System.Windows;
using System.Windows.Controls;
namespace Common.TemplateSelector
{
public class LanguageTemplateSelector : DataTemplateSelector
{
public DataTemplate TemplateEnglish { get; set; }
public DataTemplate TemplateGerman { get; set; }
public const string LanguageIdentifier = "de";
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
return Configuration.Configuration.Language == LanguageIdentifier ? this.TemplateGerman : this.TemplateEnglish;
}
}
}
这里是模板定义和<UserControl.Resources></UserControl.Resources>
区域中定义的TemplateSelector
定义:
<DataTemplate DataType="{x:Type model:Tbl_PackagingMaster_ID_PackagingType}" x:Key="PackagingTypeEnglish">
<Grid VerticalAlignment="Center" HorizontalAlignment="Left">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="24" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Image Source="{Binding TypeIcon, Converter={StaticResource StringToUriConverter}}" VerticalAlignment="Top" Grid.Column="0" Height="14" Margin="2" />
<TextBlock Text="{Binding PackagingTypeDescription}" Style="{StaticResource TextBlockMediumSmallBlackStyle}" Grid.Column="1"/>
</Grid>
</DataTemplate>
<DataTemplate DataType="{x:Type model:Tbl_PackagingMaster_ID_PackagingType}" x:Key="PackagingTypeGerman">
<Grid VerticalAlignment="Center" HorizontalAlignment="Left">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="24" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Image Source="{Binding TypeIcon, Converter={StaticResource StringToUriConverter}}" VerticalAlignment="Top" Grid.Column="0" Height="14" Margin="2" />
<TextBlock Text="{Binding PackagingTypeDescriptionGerman}" Style="{StaticResource TextBlockMediumSmallBlackStyle}" Grid.Column="1"/>
</Grid>
</DataTemplate>
<templateSelector:LanguageTemplateSelector x:Key="PackagingTypeLanguageSelector"
TemplateEnglish="{StaticResource PackagingTypeEnglish}"
TemplateGerman="{StaticResource PackagingTypeGerman}" />
这就是我将其用于ComboBox
的方式:
<telerik:RadComboBox ItemsSource="{Binding PackagingTypesFilter}"
SelectedValue="{Binding SelectedPackagingTypeFilter}"
SelectedValuePath="ID_PackagingType"
ItemTemplateSelector="{StaticResource PackagingTypeLanguageSelector}" />
但是,我仍在寻找一种更优雅的方法来解决这个问题。