Is there a better alternative than this to 'switch on type'?

Question

Seeing as C# can\'t switch on a Type (which I gather wasn\'t added as a special case because is relationships mean that more than one distinct

Answer 1

Given inheritance facilitates an object to be recognized as more than one type, I think a switch could lead to bad ambiguity. For example:

Case 1

{
  string s = "a";
  if (s is string) Print("Foo");
  else if (s is object) Print("Bar");
}

Case 2

{
  string s = "a";
  if (s is object) Print("Foo");
  else if (s is string) Print("Bar");
}

Because s is a string and an object. I think when you write a switch(foo) you expect foo to match one and only one of the case statements. With a switch on types, the order in which you write your case statements could possibly change the result of the whole switch statement. I think that would be wrong.

You could think of a compiler-check on the types of a "typeswitch" statement, checking that the enumerated types do not inherit from each other. That doesn't exist though.

foo is T is not the same as foo.GetType() == typeof(T)!!