WPF text binding with List

2019-03-21  本文已影响0人  残月星辰梦

xaml 调用:

<TextBlock Text="{Binding Path=Logs,Converter={StaticResource ListToStringConverter}}"/>

ValueConverter

[ValueConversion(typeof(List<string>), typeof(string))]
public class ListToStringConverter : IValueConverter
{

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (targetType != typeof(string))
            throw new InvalidOperationException("The target must be a String");

        return String.Join(", ", ((List<string>)value).ToArray());
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}