Question

Is it possible to achieve something like this:

Process(
    () => InstanceA.PropertyA,
    () => InstanceB.PropertyB,
    () => InstanceC.List.Select(x => x.PropertyC) // obviously not a proper way to do it
);

The third line would replace:

foreach(var item in InstanceC.List)
{
    Process(() => item.PropertyC);
}

Last part:

Process(params Func<object>[] args) // body is in this case irrelevant

So, is there a nifty syntactic sugar that I’ve could use to yield the inner elements of a list back to the outer params argument? Or did I went a step too far?

Answer 1

No but you can concatenate if you really want them to be in the same list.

var firstTwo = new Func<object>[] 
{ 
  () => InstanceA.PropertyA, 
  () => InstanceB.PropertyB 
};
Process(firstTwo.Concat(InstanceC.List.Select(x => () => x.PropertyC).ToArray());

This evaluates InstanceC.List earlier than your code and may not be your intention.