Real world use cases for C# indexers?

Question

I\'ve seen lot of examples for c# Indexers, but in what way will it help me in real life situations.

I know the C# guru wouldn\'t have added this if it wasn\'t a ser

Answer 1

Addition to @code-kings post.

Moreover, calling RollNumberVariable[0] will trigger the behavior of the default collection's indexer. While indexers are actually properties, it's on your behalf to write your own logic when extracting data. You can easily delegate most of index-parameter value to the internal collection but you can also return any arbitrary value for certain index values.

Just an example - you can have 2+ internal collections in different format, but the external user will interact with them trough a single indexer (which will kinda work as a dispatcher), while those collection will be hidden. This pretty much encourages the encapsulation principle.