Biskilog/BISKILOG POS BASIC/Company Setup/SelectBranch.cs

using BiskLog_Point_Of_Sale.Properties;
using Point_Of_Sale_Managment;
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 BiskLog_Point_Of_Sale.Company_Setup
{
    public partial class SelectBranch : Form
    {
        SqlConnection cn;
        SqlCommand cm;
        SqlDataReader dr;
        DatabaseConn conn = new DatabaseConn();
        public SelectBranch()
        {
            InitializeComponent();
            cn = new SqlConnection(conn.MyConnection());
        }

        private async void SelectBranch_Load(object sender, EventArgs e)
        {
            Task<int> task = new Task<int>(() =>
            {
                try
                {
                    cn.Open();
                    cm = new SqlCommand("Select branchID,branchName,city,branch_telephone from tblBranches", cn);
                    dr = cm.ExecuteReader();
                    while (dr.Read())
                    {
                        BranchDetails branch = new BranchDetails();
                        branch.branchID = dr[0].ToString();
                        branch.Text = dr[1].ToString();
                        branch.branchCity = dr[2].ToString();
                        branch.branchTelephone = dr[3].ToString();
                        branches.Invoke(new Action(() =>
                        {
                            branches.Items.Add(branch);
                        }));
                    }
                    dr.Close();
                    cn.Close();
                }
                catch
                {
                    cn.Close();
                }
                return 1;
            });
            btnSave.Visible = false;
            loading.Visible = true;
            task.Start();
            await task;
            loading.Visible = false;
            btnSave.Visible = true;
        }

        private void Branches_TextChanged(object sender, EventArgs e)
        {
            if (!String.IsNullOrEmpty(branches.Text))
            {
                btnSave.Enabled = true;
            }
            else
            {
                btnSave.Enabled = false;
            }
        }

        private void BtnSave_Click(object sender, EventArgs e)
        {
            Settings.Default.BranchID = (branches.SelectedItem as BranchDetails).branchID.ToString();
            Settings.Default.BranchName = (branches.SelectedItem as BranchDetails).Text.ToString();
            Settings.Default.BranchTelephone = (branches.SelectedItem as BranchDetails).branchTelephone.ToString();
            Settings.Default.BranchCity = (branches.SelectedItem as BranchDetails).branchCity.ToString();
            Settings.Default.Configured = true;
            Settings.Default.CompanyName = DatabaseLocation.company;
            Settings.Default.Save();
            this.Close();
        }
    }
}