Question

How to use string format on double for at least 2 digits before decimal point in C#

Answer 1

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            double d = 0.314;

            try
            {
                Console.WriteLine(String.Format("{0:00.0}", d)); // 00.3
                Console.WriteLine(String.Format("{0:00.0}", 123.45678)); // 123.5
                Console.WriteLine(String.Format("{0:00.0}", 123.43678)); // 123.4
                Console.WriteLine(String.Format("{0:00.0}", 1.234)); // 01.2
                Console.WriteLine(String.Format("{0:00.0}", -1.230)); // -01.2
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:

00.3
123.5
123.4
01.2
-01.2
 
*/

 

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