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How to generate Random alphanumeric string in C#


Tutorialsrack 03/11/2019

In this article, we will learn how to generate a random alphanumeric string in C#. Random String is sometimes needed. So you can generate a random alphanumeric string of a given length by using this code snippet. This function allows you to quickly generate a random string with c# and can be used for random identifiers, codes, semi-secure passwords and anywhere else where you may require a random string to be used.

Here is the code to Generate Alphanumeric Random String.

Example - How to generate a random alphanumeric string in C#
using System;
using System.Linq;

namespace Tutorialsrack
{
    class Program
    {
        /*How to Generate Random AlphaNumeric String in C#*/
        static void Main(string[] args)
        {
            Console.WriteLine("Random AlphaNumeric String is {0}", GenerateRandomAlphaNumericString(8));
            Console.ReadKey();
        }
         
        public static string GenerateRandomAlphaNumericString(int length)
        {
            //Characters used in for Generating AlphaNumeric String
            var chars = "0123456789qazwsxedcrfvtgbyhnujmiklopQAZWSXEDCRFVTGBYHNUJMIKLOP@_$";
            var random = new Random();
            var Result = new string(
            Enumerable.Repeat(chars, length) //Here "length" is the length of the alphaNumeric String
            .Select(s => s[random.Next(s.Length)])
            .ToArray());
            return Convert.ToString(Result);
        }
    }  
}

 

Output

Random AlphaNumeric String is wIqjEDZ0

Random AlphaNumeric String is WPFKrllb

 

I hope this article will help you to understand how to generate a random alphanumeric string in C#.

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