Chapter 15. Using Indexers

After completing this chapter, you will be able to:

  • Encapsulate logical array-like declarations by using indexers.

  • Control read access to indexers by declaring get accessors.

  • Control write access to indexers by declaring set accessors.

  • Create interfaces that declare indexers.

  • Implement indexers in structs and classes that inherit from interfaces.

The previous chapter described how to use and implement properties as a means of providing controlled access to the fields in a class. Properties are useful for mirroring fields that contain a single value. However, indexers are invaluable if you want to provide access to items that contain multiple values, by using a natural and familiar syntax.

What Is an Indexer?

An indexer is a ...

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