[flexcoders] What's this Called?

[Nate Pearson]

When I do this["idOfsomethingImLookingfor"]

I usually do this if I have to loop something.

So:

for (i=0; i<10; i++){
   var example:Object = this["myComponent" + i]
   //do some more stuff
}

I'm trying to do the same thing in .NET.  I don't know what it's
called though so I'm having a hard time googling it.

Thanks,

Nate