Zimogorov_Arseniy_OrdersManager/Main.cs

using Microsoft.Win32;
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 WindowsFormsApp4
{
    public partial class Main: Form
    {
        public Main()
        {
            InitializeComponent();
        }

        private void Main_Load(object sender, EventArgs e)
        {
             
        }
        private void Auth_FormClosed(object sender, FormClosedEventArgs e)
        {
            if (!string.IsNullOrEmpty(Session.UserRole))
            {
                Form workForm = null;
                switch (Session.UserRole)
                {
                    case "reader":
                        workForm = new ReaderMainForm();
                        break;
                    case "employe":
                        workForm = new bibliot();
                        break;
                    case "admin":
                        workForm = new AdminMainForm();
                        break;
                }
                if (workForm != null)
                {
                    workForm.FormClosed += (s, args) => this.Show();
                    workForm.Show();
                    this.Hide();
                }
                else
                {
                    this.Show();
                }
            }
            else
            {
                this.Show(); 
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Auth auth = new Auth();
            auth.FormClosed += Auth_FormClosed;
            auth.Show();
            this.Hide();
        }
        
        private void button2_Click(object sender, EventArgs e)
        {
            Register reg = new Register();
            reg.FormClosed += (s, args) => this.Show();
            reg.Show();
            this.Hide();
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }
    }
}