public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var container = value as IClozeContainer;
if (container == null)
{
return(value);
}
var enumerator = container.GetEnumerator();
if (enumerator == null)
{
return(value);
}
var items = new Dictionary <int, ICloze>();
while (enumerator.MoveNext())
{
var item = (ICloze)enumerator.Current;
items.Add(item.LocationIndex, item);
}
var results = new ICloze[container.Capacity];
for (var i = 0; i < container.Capacity; i++)
{
results[i] = items.ContainsKey(i) ? items[i] : container.NewItem(i);
}
return(new ObservableCollection <ICloze>(results));
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var container = value as IClozeContainer;
if (container == null) return value;
var enumerator = container.GetEnumerator();
if (enumerator == null) return value;
var items = new Dictionary<int, ICloze>();
while (enumerator.MoveNext())
{
var item = (ICloze)enumerator.Current;
items.Add(item.LocationIndex, item);
}
var results = new ICloze[container.Capacity];
for (var i = 0; i < container.Capacity; i++)
{
results[i] = items.ContainsKey(i) ? items[i] : container.NewItem(i);
}
return new ObservableCollection<ICloze>(results);
}
