public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
// We are binding an item
DataItem item = value as DataItem;
if (item != null)
{
return(item.Owner.Where(i => i.ParentId == item.Id));
}
// We are binding the treeview
DataItemCollection items = value as DataItemCollection;
if (items != null)
{
return(items.Where(i => i.ParentId == 0));
}
return(null);
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
// We are binding an item
DataItem item = value as DataItem;
if (item != null)
{
var children = item.OwnerCollection.Where(i => i.ParentId == item.Id);
var collection = new DataItemCollection(children);
collection.SetAssociatedItem(item);
return(collection);
}
// We are binding the treeview
DataItemCollection items = value as DataItemCollection;
if (items != null)
{
var children = items.Where(i => i.ParentId == 0);
return(new DataItemCollection(children));
}
return(null);
}
