Biskilog/BISKILOG POS PREMIUM/Users/AddUser.cs

using BiskLog_Point_Of_Sale;
using BiskLog_Point_Of_Sale.Multiple_Login;
using BiskLog_Point_Of_Sale.Properties;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Point_Of_Sale_Managment
{
    public partial class AddUser : Form
    {
        users userMain;
        SqlConnection cn;
        SqlCommand cm;
        SqlTransaction transaction;
        DatabaseConn conn = new DatabaseConn();
        public AddUser(users usr)
        {
            InitializeComponent();
            cn = new SqlConnection(conn.MyConnection());
            userMain = usr;
        }

        private async void Button1_Click(object sender, EventArgs e)
        {
            if (!String.IsNullOrEmpty(txtlogin.Text) && !String.IsNullOrEmpty(txtFirstname.Text) && !String.IsNullOrEmpty(txtSurname.Text) && !String.IsNullOrEmpty(txtpassword.Text)
                && !String.IsNullOrEmpty(txtconfirmation.Text) && !String.IsNullOrEmpty(txtTelephone.Text) && !String.IsNullOrEmpty(boxAccess.Text))
            {
                if (txtconfirmation.Text.Equals(txtpassword.Text))
                {
                    Task<int> task = new Task<int>(createUser);
                    loading.Visible = true;
                    button1.Enabled = false;
                    button2.Enabled = false;
                    task.Start();
                    int result = await task;
                    if (result == 1)
                    {
                        string title = "Success";
                        string message = "User account has been created successfully, please advice users to change their passwords after first logins";
                        NoAction noAction = new NoAction(title, message);
                        noAction.BringToFront();
                        noAction.ShowDialog();
                        userMain.LoadUsers();
                        this.Close();
                    }
                    else if (result == 2)
                    {
                        string title = "Username not available";
                        string message = "This username has already been taken by another user in this branch or a different branch, change username to create a new user.";
                        NoAction noAction = new NoAction(title, message);
                        noAction.BringToFront();
                        noAction.ShowDialog();
                    }
                    else
                    {
                        string title = "Account not created";
                        string message = "Unable to create user account, please try again later";
                        NoAction noAction = new NoAction(title, message);
                        noAction.BringToFront();
                        noAction.ShowDialog();
                    }
                    loading.Visible = false;
                    button1.Enabled = true;
                    button2.Enabled = true;

                }
                else
                {
                    string title = "Passwords do not match";
                    string message = "Passwords do not match, make sure they match to be able to continue";
                    NoAction noAction = new NoAction(title, message);
                    noAction.BringToFront();
                    noAction.ShowDialog();
                }
            }
            else
            {
                a1.Visible = true;
                a2.Visible = true;
                a3.Visible = true;
                a4.Visible = true;
                a5.Visible = true;
                a6.Visible = true;
                a7.Visible = true;
                string title = "Essential fields empty";
                string message = "Fields with asterisk have to be filled to continue";
                NoAction noAction = new NoAction(title, message);
                noAction.BringToFront();
                noAction.ShowDialog();
            }
        }

        private void Button2_Click(object sender, EventArgs e)
        {
            this.Close();
        }
        public int createUser()
        {
            try
            {
                cn.Open();
                transaction = cn.BeginTransaction();
                cm = new SqlCommand("Insert into tblUsers (username,password,firstname,surname,street_address1,street_address2,city," +
                    "state_or_province,telephone,email,access_level,branchID) values (@username,@password,@firstname,@surname,@street_address1,@street_address2,@city," +
                    "@state_or_province,@telephone,@email,@access_level,@branchID)", cn);
                txtlogin.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@username", txtlogin.Text);
                }));
                txtpassword.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@password", passwordEncryption.Encrypt(txtpassword.Text));
                }));
                txtFirstname.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@firstname", txtFirstname.Text);
                }));
                txtSurname.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@surname", txtSurname.Text);
                }));
                txtStreet.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@street_address1", txtStreet.Text);
                }));
                txtStreet2.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@street_address2", txtStreet2.Text);
                }));
                txtCityLocale.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@city", txtCityLocale.Text);
                }));
                txtState.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@state_or_province", txtState.Text);
                }));
                txtTelephone.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@telephone", txtTelephone.Text);
                }));
                txtEmail.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@email", txtEmail.Text);
                }));
                boxAccess.Invoke(new Action(() =>
                {
                    cm.Parameters.AddWithValue("@access_level", (boxAccess.SelectedItem as ComboboxItem).Value.ToString());
                }));
                cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                cm.Transaction = transaction;
                cm.ExecuteNonQuery();
                transaction.Commit();
                cn.Close();
                return 1;
            }
            catch (SqlException ex)
            {
                if (ex.Number == 2627)
                {
                    transaction.Rollback();
                    cn.Close();
                    return 2;
                }
                else
                {
                    transaction.Rollback();
                    cn.Close();
                    return 3;
                }
            }
            catch
            {
                transaction.Rollback();
                cn.Close();
                return 4;
            }

        }

        private void AddUser_Load(object sender, EventArgs e)
        {
            boxAccess.Items.Clear();
            ComboboxItem combobox = new ComboboxItem();
            combobox.Text = "Owner";
            combobox.Value = "owner";
            boxAccess.Items.Add(combobox);
            ComboboxItem combobox1 = new ComboboxItem();
            combobox1.Text = "Manager";
            combobox1.Value = "manager";
            boxAccess.Items.Add(combobox1);
            ComboboxItem combobox2 = new ComboboxItem();
            combobox2.Text = "Assistant Manager";
            combobox2.Value = "assist";
            boxAccess.Items.Add(combobox2);
            ComboboxItem combobox3 = new ComboboxItem();
            combobox3.Text = "Cashier";
            combobox3.Value = "cashier";
            boxAccess.Items.Add(combobox3);
        }
    }
}