public IEnumerable<IndexNode> FindAll(CollectionIndex index, int order)
{
var cur = this.GetNode(order == Query.Ascending ? index.HeadNode : index.TailNode);
while (!cur.NextPrev(0, order).IsEmpty)
{
cur = this.GetNode(cur.NextPrev(0, order));
// stop if node is head/tail
if (cur.IsHeadTail(index)) yield break;
yield return cur;
}
}
/// <summary>
/// Returns if this node is header or tail from collection Index
/// </summary>
public bool IsHeadTail(CollectionIndex index)
{
return(this.Position.Equals(index.HeadNode) || this.Position.Equals(index.TailNode));
}
