XAML converter binding for multiple properties - xaml

Question

I want to display some text in a Xamarin forms ListView grid, based on the comparison of 2 date properties. I have a converter to compare the dates and return a string. What I am trying to do (without success) is pass the entire object to the converter.
XAML:
<ResourceDictionary>
<converters1:CancelConverter x:Key="CancelConverter" />
</ResourceDictionary>
...
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<Grid>
<Label Grid.Column="0" Text="{Binding ., Converter={StaticResource CancelConverter}}" />
</Grid>
</ViewCell>
</DataTemplate>
Converter:
public class CancelConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Schedule schedule = ((Schedule)value);
DateTime date1 = schedule.ProposedCollectionDate;
DateTime date2 = schedule.OrderDate;
if (date1.CompareTo(date2) < 0)
{
return "Cancel this order";
}
}
}
The problem is that in the converter, value is null. How can I pass the object to the Converter, instead of just a single property of the object?

Answer 1

What you have shown looks good to me, but there may be something bad in what you've hidden. I can't tell, but are you properly setting the binding context of the ListView i.e. are you setting the ItemsSource property? From the information you've given, you should be setting it to something like an ObservableCollection<Schedule> or IEnumerable<Schedule> and then each item in the ListView would have a Schedule as its binding context and it would make its way into the value converter happily.