Biskilog/BISKILOG POS PREMIUM/Users/Drivers.cs

using BiskLog_Point_Of_Sale.Multiple_Login;
using BiskLog_Point_Of_Sale.Properties;
using BiskLog_Point_Of_Sale.Users;
using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Web.Security;
using System.Windows.Forms;

namespace Point_Of_Sale_Managment
{
    public partial class Drivers : Form
    {
        DatabaseConn conn = new DatabaseConn();
        SqlConnection cn = new SqlConnection();
        SqlCommand cm = new SqlCommand();
        SqlDataReader dr;
        int i = 1;
        public Drivers()
        {
            InitializeComponent();
            cn = new SqlConnection(conn.MyConnection());
            loading.Left = (ClientSize.Width - loading.Width) / 2;
        }
        private async void users_Load(object sender = null, EventArgs e = null)
        {
            Task<int> task = new Task<int>(LoadUsers);
            loading.Visible = true;
            task.Start();
            await task;
            loading.Visible = false;
        }

        private void Button1_Click(object sender, EventArgs e)
        {
            AddDrivers newUser = new AddDrivers(this);
            newUser.BringToFront();
            newUser.ShowDialog();
        }
        public int LoadUsers()
        {
            try
            {
                dataGridView1.Invoke(new Action(() =>
                {
                    dataGridView1.Rows.Clear();
                    i = 1;
                    cn.Open();
                    cm = new SqlCommand("Select driverID,firstname,surname,middlename,dateOfBirth,TT.licensePlate from tblDrivers TD Inner Join tblTrucks TT On " +
                        "TT.driver =TD.driverID where TD.branchID = @branchID and status = @status " +
                        "Select driverID,firstname,surname,middlename,dateOfBirth from tblDrivers TD where branchID = @branchID and status = @status2", cn);
                    cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                    cm.Parameters.AddWithValue("@status", "ASSIGNED");
                    cm.Parameters.AddWithValue("@status2", "UNASSIGNED");
                    cm.ExecuteNonQuery();
                    dr = cm.ExecuteReader();
                    while (dr.Read())
                    {
                        dataGridView1.Rows.Add(i, dr[0].ToString().ToUpper(), dr[1].ToString().ToUpper(), dr[2].ToString().ToUpper(), dr[3].ToString().ToUpper(), 
                            Convert.ToDateTime(dr[4].ToString()).ToLongDateString(),dr[5].ToString().ToUpper());
                        
                        i++;
                    }
                    dr.NextResult();
                    while (dr.Read())
                    {
                        dataGridView1.Rows.Add(i, dr[0].ToString().ToUpper(), dr[1].ToString().ToUpper(), dr[2].ToString().ToUpper(), dr[3].ToString().ToUpper(), 
                            Convert.ToDateTime(dr[4].ToString()).ToLongDateString());
                        i++;
                    }
                    dr.Close();
                    cn.Close();
                    dataGridView1.ClearSelection();
                }));
                return 1;
            }
            catch
            {
                cn.Close();
                return 2;
            }
        }
        public void addToList(string driverID,string firstname,string surname,string middlename,DateTime DOB)
        {
            dataGridView1.Rows.Add(i, driverID, firstname.ToUpper(), surname.ToUpper(), middlename.ToUpper(), Convert.ToDateTime(DOB).ToLongDateString());
            i++;
        }
        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            string colName = dataGridView1.Columns[e.ColumnIndex].Name;
            switch (colName)
            {
                case "Delete":
                    string title = "Deleting record";
                    string message = "Are you sure you would like to delete this driver's record, deleting a driver will his truck unavailable " +
                        "for order assignments until a new driver is assigned to the truck";
                    Confirmation confirmation = new Confirmation(title, message);
                    confirmation.BringToFront();
                    confirmation.ShowDialog();
                    if (confirmation.DialogResult == DialogResult.Yes)
                    {
                        cn.Open();
                        cm = new SqlCommand("Delete from tblDrivers where driverID = @driverID and branchID = @branch " +
                            "Update tblTrucks set driver = '' where driver = @driverID and branchID = @branch", cn);
                        cm.Parameters.AddWithValue("@driverID", dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString());
                        cm.Parameters.AddWithValue("@branch", Settings.Default.BranchID);
                        cm.ExecuteNonQuery();
                        cn.Close();

                        users_Load();

                        string titled = "Deleted Record";
                        string messaged = "Driver has been successfully deleted.";
                        NoAction noAction = new NoAction(titled, messaged);
                        noAction.BringToFront();
                        noAction.ShowDialog();
                    }
                    break;
            }
        }
    }
}