Question

我需要通过一个 View 类名称, 以命令Parameter 。如何做到这一点?

<UserControl x:Name="window"
             x:Class="Test.Views.MyView"
             ...>

    <Grid x:Name="LayoutRoot" Margin="2">
        <Grid.Resources>
            <DataTemplate x:Key="tabItemTemplate">
                <StackPanel Orientation="Horizontal" VerticalAlignment="Center" >
                    <Button Command="{Binding DataContext.CloseCommand, ElementName=window}"
                            CommandParameter="{Binding x:Class, ElementName=window}">
                    </Button>
                </StackPanel>
            </DataTemplate>
        </Grid.Resources>
    </Grid>
</UserControl>

结果应该是字符串测试。观察。我的观点。

Answer 1

""http://msdn.microsoft.com/en-us/library/ms752309.aspx" rel=“nofollow">x:Class 只是指令,不是财产,所以你无法约束它。

来自MSDN

Configures XAML markup compilation to join partial classes between markup and code-behind. The code partial class is defined in a separate code file in a Common Language Specification (CLS) language, whereas the markup partial class is typically created by code generation during XAML compilation.

但是,您可以从该类型的全名属性中获得相同的结果。使用一个转换器

CommandParameter="{Binding ElementName=window,
                           Path=.,
                           Converter={StaticResource GetTypeFullNameConverter}}"

获得 TypeFull Name 转换器

public class GetTypeFullNameConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value == null)
        {
            return null;
        }
        return value.GetType().FullName;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        throw new NotSupportedException();
    }
}

友情链接