Get number of digits before decimal point

Question

I have a variable of decimal type and I want to check the number of digits before decimal point in it. What should I do? For example, 467.45 should

Answer 1

The other solutions will lose digits if the number is too large.

public int Digits(Decimal i)
{
    NumberFormatInfo format = CultureInfo.CurrentCulture.NumberFormat;
    var str = Math.Abs(i).ToString().Replace(format.NumberGroupSeparator, "");
    var index = str.IndexOf(format.NumberDecimalSeparator);
    var digits = index == -1 ? str.Length : index;
}