// Token: 0x06008D85 RID: 36229 RVA: 0x002598B4 File Offset: 0x00257AB4
bool IEnumerator.MoveNext()
{
if (this._group._version != this._version)
{
throw new InvalidOperationException();
}
while (this._subEnum == null || !this._subEnum.MoveNext())
{
this._index++;
if (this._index >= this._group.Items.Count)
{
return(false);
}
CollectionViewGroupInternal collectionViewGroupInternal = this._group.Items[this._index] as CollectionViewGroupInternal;
if (collectionViewGroupInternal == null)
{
this._current = this._group.Items[this._index];
this._subEnum = null;
return(true);
}
this._subEnum = collectionViewGroupInternal.GetLeafEnumerator();
}
this._current = this._subEnum.Current;
return(true);
}
bool IEnumerator.MoveNext()
{
// check for invalidated enumerator
if (_group._version != _version)
{
throw new InvalidOperationException();
}
// move forward to the next leaf
while (_subEnum == null || !_subEnum.MoveNext())
{
// done with the current top-level item. Move to the next one.
++_index;
if (_index >= _group.Items.Count)
{
return(false);
}
CollectionViewGroupInternal subgroup = _group.Items[_index] as CollectionViewGroupInternal;
if (subgroup == null)
{
// current item is a leaf - it's the new Current
_current = _group.Items[_index];
_subEnum = null;
return(true);
}
else
{
// current item is a subgroup - get its enumerator
_subEnum = subgroup.GetLeafEnumerator();
}
}
// the loop terminates only when we have a subgroup enumerator
// positioned at the new Current item
_current = _subEnum.Current;
return(true);
}
