Im currently creating a windows form that must only allow a password through when it matches certain criteria. Im close to finishing however im a bit stuck with one element. "the first and last characters of the password HAVE to be numbers".
looking at my current code how would i go about this because i have ZERO idea. so baby steps and patience would be appreciated.
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;
using System.Text.RegularExpressions;
namespace password_test
{
public partial class Form1 : Form
{
bool Finished = false;
private bool TestPassword(string passwordText, int minimumLength = 5, int maximumLength = 12, int minimumNumbers = 1, int minimumLetters = 1)
{
int letters = 0;
int digits = 0;
int minLetters = 0;
if (passwordText.Length < minimumLength)
{
MessageBox.Show("You must have at least " + minimumLength + " characters in your password.");
return false;
}
if (passwordText.Length > maximumLength)
{
MessageBox.Show("You must have no more than " + maximumLength + " characters in your password.");
return false;
}
foreach (var ch in passwordText)
{
if (char.IsLetter(ch)) letters++;
if (char.IsDigit(ch)) digits++;
if (ch > 96 && ch < 123)
{
minLetters++;
}
}
if (digits < minimumNumbers)
{
MessageBox.Show("You must have at least " + minimumNumbers + " numbers in your password.");
return false;
}
if (minLetters < minimumLetters)
{
MessageBox.Show("You must have at least " + minimumLetters + " letter in your password");
return false;
}
Finished = true;
return true;
}
public Form1()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void butConfirm_Click(object sender, EventArgs e)
{
if (txtPassword.Text == txtRetypePassword.Text)
{
bool temp = TestPassword(txtPassword.Text, 10, 100, 1, 1);
if (Finished == true)
{
MessageBox.Show("Password Accepted");
Application.Exit();
//this.Hide();
//Form2 f2 = new Form2();
//f2.ShowDialog();
}
}
else
{
MessageBox.Show("Please ensure the passwords you have typed match");
return;
}
}
private void txtPassword_KeyPress(object sender, KeyPressEventArgs e)
{
if (!char.IsControl(e.KeyChar) && !char.IsLetterOrDigit(e.KeyChar))
{
e.Handled = true;
}
else
{
return;
}
}
private void txtRetypePassword_TextChanged(object sender, EventArgs e)
{
}
}
}
