Windows Forms Application To Generate A Unique Random Password

This blog demonstrates how to create an application to generate random number encrypted passwords. We will create one Windows Form application in C# which generates a unique encrypted password.

So, let's open Visual Studio and follow these steps.

Step 1

Open Visual Studio.

Step 2

Go to File >> New >> Project. 

Step 3

Now, choose Visual C# and select Windows. Then, select Windows Forms Application. Now, you can give your application name and click on OK button. 

Step 4

Design the form like this.

Step 5

Create one static method with the name "Shuffle" in code-behind. 

This Shuffle method returns a string parameter with the position changed for all the characters.

static string Shuffle(string input) {
    var q = from c in input.ToCharArray()
    orderby Guid.NewGuid()
    select c;
    string s = string.Empty;
    foreach(var r in q)
    s += r;
    return s;
}

Step 6

Now, write the following code in ValueChanged event of Tickbar control.

private void trckbar_length_ValueChanged(object sender, EventArgs e) {
    passLength = trckbar_length.Value + 1; //trackbar value starts from 0, so I add +1 to make it understandable;
    lbl_passlength.Text = passLength.ToString();
}

Step 7

After this, write the following code in click event of the "Generate password" button.

private void btn_generatepass_Click(object sender, EventArgs e)
{
    txb_password.Text = "";
    string text = "aAbBcCdDeEfFgGhHiIjJhHkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ01234567890123456789,;:!*$@-_=,;:!*$@-_=";
    text = Shuffle(text); //shuffle the above symbols using shuffle() method.
    text = text.Remove(passLength); //cut the string size according to the chosen trackbar value.
    txb_password.Text = text;
}

Now, let's write full C# code, so you can understand it very well.

C# Code

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace iPass {
    public partial class MainForm: Form {
        int passLength = 0;
        public MainForm() {
            InitializeComponent();
        }
        //Shuffle method that returns a string parameter with all the characters' position changed.
        static string Shuffle(string input) {
            var q = from c in input.ToCharArray()
            orderby Guid.NewGuid()
            select c;
            string s = string.Empty;
            foreach(var r in q)
            s += r;
            return s;
        }
        private void btn_generatepass_Click(object sender, EventArgs e) {
            txb_password.Text = "";
            string text = "aAbBcCdDeEfFgGhHiIjJhHkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ01234567890123456789,;:!*$@-_=,;:!*$@-_=";
            text = Shuffle(text); //shuffle the above symbols using shuffle() method.
            text = text.Remove(passLength); //cut the string size according to the chosen trackbar value.
            txb_password.Text = text;
        }
        private void trckbar_length_ValueChanged(object sender, EventArgs e) {
            passLength = trckbar_length.Value + 1; //trackbar value starts from 0, so I add +1 to make it understandable;
            lbl_passlength.Text = passLength.ToString();
        }
    }
}

Step 8

Run this project.

Summary

This Password Generator will generate a unique random password using characters, letters, numbers, and special characters so it can't be decrypted easily.