Login Page

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace Login

{

    public partial class Form1 : Form

    {

        int count = 0;

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            if (count > 3)

            {

                MessageBox.Show("You exceeded the limit , Your Account has been blocked");

                return;

            }

            if (textBox1.Text == "user" && textBox2.Text == "user")

            {

                MessageBox.Show("Welcome User");

            }

            else

            {

                MessageBox.Show("Invalid Login");

                count++;

            }

           

        }

    }

}