| Overload | Description |
|---|---|
| LastIndexOf(T) | Gets the index at which the item appears in the set for the last time, starting from the specified index. Returns -1 if the item does not appear in the set. |
| LastIndexOf(T,Int32) | Gets the index at which the item appears in the set for the last time, starting from the specified index. Returns -1 if the item does not appear in the set. |