Use ToString() to format values
/* C#: The Complete Reference by Herbert Schildt Publisher: Osborne/McGraw-Hill (March 8, 2002) ISBN: 0072134852 */ // Use ToString() to format values. using System; public class ToStringDemo { public static void Main() { double v = 17688.65849; double v2 = 0.15; int x = 21; string str = v.ToString("F2"); Console.WriteLine(str); str = v.ToString("N5"); Console.WriteLine(str); str = v.ToString("e"); Console.WriteLine(str); str = v.ToString("r"); Console.WriteLine(str); str = v2.ToString("p"); Console.WriteLine(str); str = x.ToString("X"); Console.WriteLine(str); str = x.ToString("D12"); Console.WriteLine(str); str = 189.99.ToString("C"); Console.WriteLine(str); } }