Question

How to use string format on double for thousands separator in C#

Answer 1

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            double d = 10000000.314;

            try
            {
                Console.WriteLine(String.Format("{0:0,0.00}", d)); // 10,000,000.31
                Console.WriteLine(String.Format("{0:0,0.00}", 123456.78)); // 123,456.78
                Console.WriteLine(String.Format("{0:0,0.00}", 123436.78)); // 123,436.78
                Console.WriteLine(String.Format("{0:0,0.00}", 123.4)); // 123.40
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:

10,000,000.31
123,456.78
123,436.78
123.40
 
*/

 

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