Question

我知道这看起来像是一个重复的问题，但我已经尝试过在类似问题中提出的解决方案。

<UserControl.Resources>
    <common:BooleanToVisibilityMultipleConverter x:Key="BoolToVisibilityMultiConverter"/>
</UserControl.Resources>
<Grid Margin="5">

 ---------------------------------------------------------------------
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 <Button Grid.Row="8" Grid.Column="2" 
            Margin="5"
            VerticalContentAlignment="Center" HorizontalAlignment="Right"                
            Background="{x:Static sds:AppBrushes.Green}" 
            MinWidth="{StaticResource SdsButtonMinWidth}" 
            Content="{x:Static res:Resources.UpdatePlantNameButton}" 
            Command="{Binding CreateDatabaseCommand}">
       <Button.Visibility>
            <MultiBinding Converter="{StaticResource BoolToVisibilityMultiConverter}">
                <Binding Path="IsDatabaseCreated"/>
                <Binding Path="IsHistory"/>
            </MultiBinding>
        </Button.Visibility>
    </Button>
</Grid>
</UserControl>

我的转换器代码 -

namespace ABB.SDS.Batch.Common
{
   public class BooleanToVisibilityMultipleConverter : IMultiValueConverter
   {
    public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
    {
        return values.OfType<bool>().All(b => b) ? Visibility.Visible : Visibility.Hidden;
    }

    public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
  }
}

我只是在一个地方提到转换器，那是在定义了转换器之后。我仍然得到这个例外 “该方法或操作未实施。导致：'提供价值'System.Windows.StaticResourceExtension'引发了异常。行号'111'和行位置'18'“

我错过了什么？是否有任何其他用例抛出此异常？

提供'System.Windows.StaticResourceExtension'的值引发异常。转换器在引用之前定义

0 个答案: