How to Generate Random Alpha Numeric String between a given range of a Random Length in C#

Tutorialsrack 03/11/2019 C# Programs

In this article, we will learn how to generate a random alphanumeric string between a given range of a random length in C#. Random String is sometimes needed. So you can generate random alphanumeric string between a given range of a random length by using this code snippet. This function allows you to quickly generate random strings between a given range of a random length 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 between a given range of a random length and in this example, it will generate an alphanumeric string from a range between 8 to 15 characters long consisting of Uppercase and lowercase letters and numbers.

using System;
using System.Linq;

namespace Tutorialsrack
{
    class Program
    {
        /* How to Generate Random AlphaNumeric String between a given range of a Random Length in C# */
        static void Main(string[] args)
        {
            Console.WriteLine("Random AlphaNumeric String is {0}", GenerateRandomAlphaNumericString(new Random().Next(8,15)));
            
            Console.ReadKey();
        }
        //Method is used to Generate Alphanumeric String of a Specific Range
        public static string GenerateRandomAlphaNumericString(int length)
        {
            Random random = new Random((int)DateTime.Now.Ticks);
            //Characters used in for Generating AlphaNumeric String
            string input = "abcdefghijklmnopqrstuvwxyzQAZWSXEDCRFVTGBYHNUJMIKLOP0123456789";
            return new string(Enumerable.Range(0, length).Select(x => input[random.Next(0, input.Length)]).ToArray());
        }

    }  
}

I hope this article will help you to understand how to generate Random alphanumeric string between a given range of a random length in C#.

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