// Token: 0x060073A0 RID: 29600 RVA: 0x002115DC File Offset: 0x0020F7DC
internal void Clear()
{
this.FullCount = 1;
base.ProtectedItemCount = 0;
if (this._groupBy != null)
{
PropertyChangedEventManager.RemoveHandler(this._groupBy, new EventHandler <PropertyChangedEventArgs>(this.OnGroupByChanged), string.Empty);
this._groupBy = null;
int i = 0;
int count = base.ProtectedItems.Count;
while (i < count)
{
CollectionViewGroupInternal collectionViewGroupInternal = base.ProtectedItems[i] as CollectionViewGroupInternal;
if (collectionViewGroupInternal != null)
{
collectionViewGroupInternal.Clear();
}
i++;
}
}
base.ProtectedItems.Clear();
if (this._nameToGroupMap != null)
{
this._nameToGroupMap.Clear();
}
}
// Token: 0x0600739F RID: 29599 RVA: 0x00211574 File Offset: 0x0020F774
internal int Remove(object item, bool returnLeafIndex)
{
int result = -1;
int num = base.ProtectedItems.IndexOf(item);
if (num >= 0)
{
if (returnLeafIndex)
{
result = this.LeafIndexFromItem(null, num);
}
CollectionViewGroupInternal collectionViewGroupInternal = item as CollectionViewGroupInternal;
if (collectionViewGroupInternal != null)
{
collectionViewGroupInternal.Clear();
this.RemoveSubgroupFromMap(collectionViewGroupInternal);
}
this.ChangeCounts(item, -1);
if (base.ProtectedItems.Count > 0)
{
base.ProtectedItems.RemoveAt(num);
}
}
return(result);
}
internal int Remove(object item, bool returnLeafIndex)
{
int index = -1;
int localIndex = ProtectedItems.IndexOf(item);
if (localIndex >= 0)
{
if (returnLeafIndex)
{
index = LeafIndexFromItem(null, localIndex);
}
CollectionViewGroupInternal subGroup = item as CollectionViewGroupInternal;
if (subGroup != null)
{
subGroup.Clear();
// Remove from the name to group map.
RemoveSubgroupFromMap(subGroup);
}
ChangeCounts(item, -1);
// ChangeCounts may clear this group, if it is now empty.
// In that case, don't use localIndex - it's now out of range.
if (ProtectedItems.Count > 0)
{
ProtectedItems.RemoveAt(localIndex);
}
}
return(index);
}
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();
}
}