I have an object in my view model that has a bunch of properties, some of them will occasionally be null. I don't want to just show some controls if these particular controls are null. How would I go about hiding the control if the bind is null? I was thinking of some sort of converter, but don't know how I'd go about doing it exactly. Any ideas?
edit: sorry, I should mention that this will also be in Silverlight, so I'm not sure if Style triggers would work...?
Have a converter like follows,
public sealed class NullToVisibilityConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return value == null ? Visibility.Hidden: Visibility.Visible;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
Now, bind the property with the Visibility property as well. Like,
<ListBox ItemsSource="{Binding Path=Squad}"
Visibility="{Binding Converter={StaticResource nullToVisibilityConverter},
Path=Squad}">
<ListBox.ItemTemplate>
<DataTemplate>
<CheckBox Content="{Binding}" />
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>