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

I expect you could call static methods in the parameter list of the base class constructor.

public class DerivedClass : BaseClass
{
    public DerivedClass(int i)
        : base(ChooseInputType(i))
    {
    }

    private static InputType ChooseInputType(int i)
    {
        // Logic
        return InputType.Number;
    }
}