Odd decimal type behavior for ToString(IFormatProvider)

Question

var numberFormat = new NumberFormatInfo();
numberFormat.NumberDecimalSeparator = \".\";
numberFormat.NumberDecimalDigits = 2;

decimal a = 10.00M;
decimal b = 10M;

Cons         


        

Answer 1

The NumberDecimalDigits property is used with the "F" and "N" standard format strings, not the ToString method called without a format string.

You can use:

Console.WriteLine(a.ToString("N", numberFormat));