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我有Languages
枚举。而我Model.Translations
代表着不同语言的翻译:枚举与转换器绑定
public ObservableCollection<LanguageValue> Translations { get; set; }
public class LanguageValue
{
public Language Key { get; set; }
public string Value { get; set; }
}
我想我的观点有标签 - 文本框列表中的每个翻译项目。 但在标签我想有类似"Caption ({0})"
,其中参数是语言名称(枚举为字符串表示形式)。本文本身来自Resources。
喜欢的东西:
<ItemsControl ItemsSource="{Binding Path=Translations}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid Margin="5,2,5,2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="30*"/>
<ColumnDefinition Width="70*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" x:Name="ItemLabel" VerticalAlignment="Center"
Text="{Binding Path=Key, Converter=languageConverter, ConverterParameter={x:Static res:Resources.lblCaption}}" />
<TextBox Grid.Column="1" x:Name="ItemText" VerticalAlignment="Center"
Text="{Binding Path=Value, Mode=TwoWay}" />
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
我LanguageConverter:
[ValueConversion(typeof(Language), typeof(string))]
public class LanguageToDisplayConverter : IValueConverter
{
public object Convert(object value, Type t, object parameter, CultureInfo culture)
{
return string.Format(parameter.ToString(), ((Language)value).ToString());
}
public object ConvertBack(object value, Type t, object parameter, CultureInfo culture)
{
//I guess I don't need this anyway?
return null;
}
}
但我有错误:
The TypeConverter for "IValueConverter" does not support converting from a string.
有什么不对?