Question

How to format a number with thousands separator (commas) in C#

Answer 1

using System;

class Program
{
    static void Main() {
        int x = 49876173;
        
        Console.WriteLine(String.Format("{0:n}", x)); 
        Console.WriteLine(String.Format("{0:n0}", x));
    }
}



/*
run:

49,876,173.00
49,876,173

*/

 

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Answer 2

using System;

class Program
{
    static void Main() {
        int num = 1234567;
        
        string str = num.ToString("N");
        Console.WriteLine(String.Format(str));
        
        str = num.ToString("N0");
        Console.WriteLine(str);
    }
}
 
 
 
 
/*
run:
 
1,234,567.00
1,234,567
 
*/

 

 

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