public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
var ctx = value as CommandContext;
if (ctx == null) return null;
BindingCollection<object> result = new BindingCollection<object>();
ctx.PropertyChanged += (s, e) => result.Load(Load(ctx));
result.Load(Load(ctx));
return result;
}
