Question

Is it possible to have something like the following:

class C {     public Foo Foos[int i]     {         ...     }      public Bar Bars[int i]     {         ...     } } 

If not, then are what are some of the ways I can achieve this? I know I could make functions called getFoo(int i) and getBar(int i) but I was hoping to do this with properties.

Answer 1

Not in C#, no.

However, you can always return collections from properties, as follows:

public IList<Foo> Foos {     get { return ...; } }  public IList<Bar> Bars {     get { return ...; } } 

IList<T> has an indexer, so you can write the following:

C whatever = new C(); Foo myFoo = whatever.Foos[13]; 

On the lines ‘return …;’ you can return whatever implements IList<T>, but you might what to return a read-only wrapper around your collection, see AsReadOnly() method.