How to format Integers with ToString() in C# ?

Published on September 2, 2012 by Senthil Kumar

Filed under C#

Last modified September 2, 2012

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You can use the ToString() method to format the Integer value like showing the Hexadecimal value , padding with leading zeros or fixed length integer or Octal number .

Below is a sample sourcecode to demonstrate How to format Integers with ToString() in C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApplication1
    static class Program
        static void Main()

        static void FormatString()
            int intVal = 100;
            string formattedString = intVal.ToString("X");
            formattedString = Convert.ToString(intVal, 8);
            formattedString = intVal.ToString("D10");

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