C# what is the point or benefit of an indexer?

Question

Doing some code reading and stumbled upon this snippet that I haven\'t seen before:

public SomeClass {
  public someInterface this[String strParameter] {
            


        

Answer 1

Well you could use this method in a key-value pair class.

I am not sure what the analogous class is in c#, but in c++ STL, there is the map class where you call the method with the SomeObject["key"] and it will return the "value" associated with that key.