private void DoUpdate(ISortedChangeSet <TObject, TKey> updates, IObservableCollection <TObject> list)
{
foreach (var update in updates)
{
switch (update.Reason)
{
case ChangeReason.Add:
list.Insert(update.CurrentIndex, update.Current);
break;
case ChangeReason.Remove:
list.RemoveAt(update.CurrentIndex);
break;
case ChangeReason.Moved:
list.Move(update.PreviousIndex, update.CurrentIndex);
break;
case ChangeReason.Update:
if (update.PreviousIndex != update.CurrentIndex)
{
list.RemoveAt(update.PreviousIndex);
list.Insert(update.CurrentIndex, update.Current);
}
else
{
list.Replace(update.Previous.Value, update.Current);
}
break;
}
}
}
private void DoUpdate(ISortedChangeSet <TObject, TKey> updates, IObservableCollection <TObject> list)
{
updates.ForEach(update =>
{
switch (update.Reason)
{
case ChangeReason.Add:
list.Insert(update.CurrentIndex, update.Current);
break;
case ChangeReason.Remove:
list.RemoveAt(update.CurrentIndex);
break;
case ChangeReason.Moved:
list.Move(update.PreviousIndex, update.CurrentIndex);
break;
case ChangeReason.Update:
{
list.RemoveAt(update.PreviousIndex);
list.Insert(update.CurrentIndex, update.Current);
}
break;
}
});
}
public bool ReceiveWeakEvent(Type managerType, object sender, EventArgs e)
{
if (managerType == typeof(CollectionChangedEventManager))
{
NotifyCollectionChangedEventArgs arg = e as NotifyCollectionChangedEventArgs;
if (arg != null)
{
switch (arg.Action)
{
case NotifyCollectionChangedAction.Add:
if (arg.NewItems != null)
{
for (int itemIndex = 0; itemIndex < arg.NewItems.Count; itemIndex++)
{
_syncCollection.Insert(arg.NewStartingIndex +
itemIndex, _create(arg.NewItems[itemIndex] as T));
}
break;
}
break;
case NotifyCollectionChangedAction.Move:
_syncCollection.RemoveAt(arg.OldStartingIndex);
_syncCollection.Insert(arg.NewStartingIndex, _create(arg.NewItems[0] as T));
break;
case NotifyCollectionChangedAction.Remove:
if (arg.OldItems != null && _syncCollection.Count > 0)
{
for (int itemIndex = 0; itemIndex < arg.OldItems.Count; itemIndex++)
{
_syncCollection.RemoveAt(arg.OldStartingIndex);
}
}
break;
case NotifyCollectionChangedAction.Replace:
if (arg.NewItems == null)
{
for (int itemIndex = 0; itemIndex < arg.NewItems.Count; itemIndex++)
{
_syncCollection[arg.NewStartingIndex + itemIndex] = _create(arg.NewItems[itemIndex] as T);
}
}
break;
case NotifyCollectionChangedAction.Reset:
_syncCollection.Clear();
break;
default:
break;
}
}
return(true);
}
return(false);
}
private IUndoableAction Pop(IObservableCollection <IUndoableAction> stack)
{
if (stack.Count == 0)
{
return(null);
}
var r = stack[stack.Count - 1];
stack.RemoveAt(stack.Count - 1);
return(r);
}
public bool Remove(object a)
{
if (a is FloodRule rule)
{
return(rules.Remove(rule));
}
else if (a is string || a is ConcatenatedString)
{
int idx = rules.FindIndex((s) => s.Name == a.ToString());
if (idx > -1)
{
rules.RemoveAt(idx);
return(true);
}
}
return(false);
}
public void Redo() => target.RemoveAt(index);
/// <summary>
/// Remove o item na posição informada.
/// </summary>
/// <param name="index"></param>
public void RemoveAt(int index)
{
_source.RemoveAt(_indexes[index]);
}