private void Add(T item, CollectionStates state)
{
if (item is INotifyPropertyChanged notifiableItem)
{
notifiableItem.PropertyChanged += item_PropertyChanged;
}
_internalCollection.Add(item, state);
}
private bool ChangeState(T item, CollectionStates state)
{
var fod = _internalCollection.ContainsKey(item);
if (!fod)
{
return(false);
}
_internalCollection[item] = state;
return(true);
}
private bool AttachTransactionIfSet(TEntity changedItem, CollectionStates action)
{
if (Transaction.Current != null)
{
if (_currentTransaction == null)
{
_currentTransaction = Transaction.Current;
_currentTransaction.TransactionCompleted += _currentTransaction_TransactionCompleted;
}
var hasElement = _transactionalItems.FirstOrDefault(s => s.Item.Equals(changedItem));
if (hasElement != null)
{
if (hasElement.State == CollectionStates.Added)
{
if (action == CollectionStates.Removed)
{
_transactionalItems.Remove(hasElement);
}
}
if (hasElement.State == CollectionStates.Removed)
{
if (action == CollectionStates.Added)
{
hasElement.State = CollectionStates.Unchanged;
}
}
}
else
{
_transactionalItems.Add(new TransactionalItem <TEntity>(changedItem, action));
}
return(true);
}
return(false);
}
private void Add(T value, CollectionStates state)
{
value.PropertyChanged += item_PropertyChanged;
_internalCollection.Add(value, state);
}
internal TransactionalItem(TEntity item, CollectionStates state)
{
Item = item;
State = state;
}