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.

Windows.Forms

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.

Windows.Forms

Step 4

Design the form like this.

Windows.Forms

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.

Windows.Forms

Summary

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