internal void Clear()
{
// reset the counts before delving into subgroups. The subgroup
// changes can incur re-entrant calls to LeafAt(index) which will
// get out-of-range exceptions (DDVSO 656948), unless we fend them
// off by ensuring that count<=index.
FullCount = 1;
ProtectedItemCount = 0;
if (_groupBy != null)
{
// This group has subgroups. Disconnect from GroupDescription events
PropertyChangedEventManager.RemoveHandler(_groupBy, OnGroupByChanged, String.Empty);
_groupBy = null;
// recursively clear subgroups
for (int i = 0, n = ProtectedItems.Count; i < n; ++i)
{
CollectionViewGroupInternal subGroup = ProtectedItems[i] as CollectionViewGroupInternal;
if (subGroup != null)
{
subGroup.Clear();
}
}
}
ProtectedItems.Clear();
if (_nameToGroupMap != null)
{
_nameToGroupMap.Clear();
}
}
internal void Clear()
{
if (_groupBy != null)
{
// This group has subgroups. Disconnect from GroupDescription events
PropertyChangedEventManager.RemoveHandler(_groupBy, OnGroupByChanged, String.Empty);
_groupBy = null;
// recursively clear subgroups
for (int i = 0, n = ProtectedItems.Count; i < n; ++i)
{
CollectionViewGroupInternal subGroup = ProtectedItems[i] as CollectionViewGroupInternal;
if (subGroup != null)
{
subGroup.Clear();
}
}
}
FullCount = 1;
ProtectedItemCount = 0;
ProtectedItems.Clear();
if (_nameToGroupMap != null)
{
_nameToGroupMap.Clear();
}
}
/// <summary>
/// Internal use only.
/// </summary>
/// <param name="items"></param>
/// <returns></returns>
public ReadOnlyObservableCollection <Object> BuildGroupsFromList(IList items)
{
ProtectedItems.Clear();
foreach (var item in items)
{
AddItemToGroup(item, 0, this);
}
return(this.Items);
}
internal void Clear()
{
FullCount = 1;
ProtectedItemCount = 0;
ProtectedItems.Clear();
if (_nameToGroupMap != null)
{
_nameToGroupMap.Clear();
}
}
internal void ClearSubtree()
{
ProtectedItems.Clear();
CollectionChanged.Raise(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
return;
// if (IsBottomLevel) {
// ClearItems ();
// } else {
// foreach (StandardCollectionViewGroup g in Items)
// g.ClearSubtree ();
// }
}
private void CollectionViewGroupProxy_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
var copy = _wrapped.Group.ToList();
_dispatcher.Invoke(() =>
{
ProtectedItems.Clear();
foreach (var item in copy)
{
ProtectedItems.Add(item);
}
ProtectedItemCount = copy.Count;
});
}
/// <summary>
/// Clears the collection of items
/// </summary>
internal void Clear()
{
ProtectedItems.Clear();
FullCount = 1;
ProtectedItemCount = 0;
}
internal void ClearItems()
{
ProtectedItems.Clear();
ProtectedItemCount = 0;
}
