| Name | Description | |
|---|---|---|
  | AsIndexed<T> | This method extends the LINQ methods to add index for each item |
| Flatten | Overloaded. This method extends the LINQ methods to flatten a collection of items that have a property of children of the same type. |
| Repeat<T> | Generates a sequence that contains one repeated value. |
| Select<T,TR> | Projection of given sequence with first, last markers. |
| SelectWithNext<TSource,TResult> | Proceeds each item in enumerable with its follower. |
| WithIndex<T> | Wraps an item of type T into type OrderedItem<T>, adding the specified index |
| ZipEx | Overloaded. Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results |