public void Replace(int index, int oldCount, int newCount, bool reset)
{
for (int i = 0; i < oldCount; i++)
{
Inner.RemoveAt(index);
}
for (int i = 0; i < newCount; i++)
{
Inner.Insert(index, 10000 + i);
}
if (reset)
{
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Reset, -1, -1, -1, -1));
}
else
{
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(
NotifyCollectionChangedAction.Replace,
oldStartingIndex: index,
oldItemsCount: oldCount,
newStartingIndex: index,
newItemsCount: newCount));
}
}
public void Reset()
{
Random rand = new Random(123);
for (int i = 0; i < 10; i++)
{
int from = rand.Next(0, Inner.Count - 1);
var value = Inner[from];
Inner.RemoveAt(from);
int to = rand.Next(0, Inner.Count - 1);
Inner.Insert(to, value);
}
// something changed, but i don't want to tell you the
// exact changes
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Reset, -1, -1, -1, -1));
}
public void Remove(int index, int count, bool reset)
{
for (int i = 0; i < count; i++)
{
Inner.RemoveAt(index);
}
if (reset)
{
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Reset, -1, -1, -1, -1));
}
else
{
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(
NotifyCollectionChangedAction.Remove,
oldStartingIndex: index,
oldItemsCount: count,
newStartingIndex: -1,
newItemsCount: -1));
}
}
public void Insert(int index, int count, bool reset, int valueStart = 1000)
{
for (int i = 0; i < count; i++)
{
Inner.Insert(index + i, valueStart + i);
}
if (reset)
{
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Reset, -1, -1, -1, -1));
}
else
{
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(
NotifyCollectionChangedAction.Add,
oldStartingIndex: -1,
oldItemsCount: -1,
newStartingIndex: index,
newItemsCount: count));
}
}
public void Move(int oldIndex, int newIndex, int count, bool reset)
{
var items = Inner.GetRange(oldIndex, count);
Inner.RemoveRange(oldIndex, count);
Inner.InsertRange(newIndex, items);
if (reset)
{
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Reset, -1, -1, -1, -1));
}
else
{
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(
NotifyCollectionChangedAction.Move,
oldStartingIndex: oldIndex,
oldItemsCount: count,
newStartingIndex: newIndex,
newItemsCount: count));
}
}
public new void Clear()
{
Inner.Clear();
// something changed, but i don't want to tell you the exact changes
OnItemsSourceChanged(CollectionChangeEventArgsConverters.CreateNotifyArgs(NotifyCollectionChangedAction.Reset, -1, -1, -1, -1));
}