Method to pass only accepted parameter values

Question

Assuming the following method:

int ExtractMedian(int Statistic)
{
    return ExtractionWork;
}

Is it possible to force Statistic to accept only odd numbers like 1, 3, 5 by using ref for example but without checking the value after it is passed?

Answer 1

Is it possible to force Statistic to accept only odd numbers like 1, 3, 5 by using ref for example but without checking the value after it is passed?

No, I don't think so.

I would simply check at the start of the method:

int ExtractMedian(int Statistic)
{
    if(Statistic % 2 == 0)
        throw new ArgumentException("Statistic must be odd");

    return ExtractionWork;
}

Answer 2

No, there is no way to do that.

Code Contracts COULD be used to force this - but they are basically a post processing step in code that then can get used by an analyzer to see an invalid call. They are NOT part of the integral .NET functionality.