Design Patterns in C#: A Hands-on Guide with Real-World Examples

© Vaskaran Sarcar 2018

V. SarcarDesign Patterns in C#https://doi.org/10.1007/978-1-4842-3640-6_18

18. Iterator Pattern

Vaskaran Sarcar¹  

(1)

Whitefield, Bangalore, Karnataka, India

 

This chapter covers the Iterator pattern.

GoF Definition

Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.

Concept

Iterators are generally used to traverse a container (which is basically an object) to access its elements, but you do not need to deal with the element’s internal details. You will frequently use the concepts of iterators when you want to traverse different kinds of collection objects in a standard and uniform way.

• This concept is used frequently to traverse the nodes of a tree-like structure. ...