Modifying parameter values before sending to Base constructor

Question

The title may be a bit ambiguous, but I couldn\'t think of a better way to word this.

I realize that I can not call a derived constructor prior to calling a base con

Answer 1

Yes. It's fine to use normal expressions, which don't access the instance, in order to manipulate the value. For instance

public DerivedClass(int i)
    : base((InputType)i)
{
}