在silverlight中从公共类中获取特定对象

Question

大家好，我有这个转换器类：

public class InboxItemValueConverters : IValueConverter 
{
    public object Convert(object value, System.Type targetType,
                            object parameter, CultureInfo culture)
    {
        int urgency = (int)value;
        Brush brush = new SolidColorBrush();

        if (urgency == 0)
        {
            brush = new SolidColorBrush(Colors.Green);            }
        else if (urgency == 1)
        {
            brush = new SolidColorBrush(Colors.Yellow);
        }
        else if (urgency == 2)
        {
            brush = new SolidColorBrush(Colors.Red);
        }


        return brush;
    }

    public object ConvertBack(object value,  System.Type targetType,
                              object parameter,  CultureInfo culture)
    {
        return null;
    }



    public object ConvDateToShort(object value, System.Type targetType,
                            object parameter, CultureInfo culture)
    {
        DateTime DT = (DateTime)value;
        return DT.ToShortDateString();
    }


    public object Convdateback(object value, System.Type targetType,
                  object parameter, CultureInfo culture)
    {
        return null;
    }

}

这就是我第一次引用和使用它的方式：

<src:InboxItemValueConverters x:Key="converttocolor" />

 <Canvas Background="{Binding Urgency, Converter={StaticResource converttocolor}}"

在课堂上没有，你们可以看到我有一个日期转换器吗？我将如何通过 xaml 获取该对象？想要在另一个控件中转换日期，来自同一类

新的xml：

Text="{Binding DocDate , Converter={StaticResource converttocolor}}"

提前致谢！

我正在使用visual studio 2012/windows phone 8/c#/silverlight

Answer 1

您必须将日期转换器从 colorconverter 类移到它自己的类中

public class DateValueConverter : IValueConverter 
{
    public object Convert(object value, System.Type targetType,
                            object parameter, CultureInfo culture)
    {
        DateTime DT = (DateTime)value;
        return DT.ToShortDateString();
    }
    public object ConvertBack(object value, System.Type targetType,
                  object parameter, CultureInfo culture)
    {
        return null;
    }
}

然后像你做颜色转换器一样在顶部声明它，然后将转换器更改为指向日期转换器的键

//This needs to be declared below the colorconverter resource
<src:DateValueConverter  x:Key="dateConverter" />

Text="{Binding DocDate , Converter={StaticResource dateConverter}}"