How to use StringFormat in XAML elements?

Edward_Tanguay_4639 0
Viewed 84968

I'm deep in a XAML stack of elements binding to orders.

The order date displays as e.g. "12/31/2008 12:00:00 AM".

I want it to display as e.g. "31.12.2008".

How can I do this? I have seen other stackoverflow questions mention StringFormat but they use multibinding in ways that I can't get to work.

Here is the kind of syntax I would like (this is pseudocode), simply specifying StringFormat where you need it, is this possible somehow?

<StackPanel>
    <ListView ItemsSource="{Binding Orders}">
        <ListView.View>
            <GridView>
                <GridViewColumn 
                    Header="Order ID" 
                    DisplayMemberBinding="{Binding Path=OrderID}"
                    StringFormat="{}{1:dd.MM.yyyy}"/>
                <GridViewColumn 
                    Header="Order Date" 
                    DisplayMemberBinding="{Binding Path=OrderDate}"/>
            </GridView>
        </ListView.View>
    </ListView>
</StackPanel>
string-formatting xaml
4 Answers

I haven't tested it, but I think this should work:

<GridViewColumn
    Header="Order Date"
    DisplayMemberBinding=
        "{Binding Path=OrderDate, StringFormat='{}{0:dd.MM.yyyy}'}"/>
user_388890

XAML

<UserControl.Resources>
    <myNamespace:DateTimeConverter x:Key="DateTimeConverter" />
</UserControl.Resources>

<GridViewColumn 
DisplayMemberBinding=="{Binding Path=OrderDate, Converter={StaticResource DateTimeConverter}}" 
/>

C#

public class DateTimeConverter : IValueConverter
{
    public object Convert(object value,
                       Type targetType,
                       object parameter,
                       CultureInfo culture)
    {
        if (value != null)
        {
            return ((DateTime)value).ToString("dd.MM.yyyy");
        }
        else
        {
            return String.Empty;
        }
    }

    public object ConvertBack(object value,
                              Type targetType,
                              object parameter,
                              CultureInfo culture)
    {
        return DateTime.Parse(value.ToString());
    }
}
user_756580
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