admin.cs

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 Liberary_management_system
{
    public partial class admin : Form
    {
        public admin()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if(textBox1.Text=="admin" && textBox2.Text=="1234")
            {
                this.Hide();
                adminmain ad = new adminmain();
                ad.Show();
            }
            else
            {
                label3.Text = "Incorrect email or password";
            }
        }

        private void admin_Load(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Hide();
            Form1 f1 = new Form1();
            f1.Show();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
    }
}