Biskilog/BISKILOG POS BASIC/POSDialogs/HeldTransactions.cs

using BiskLog_Point_Of_Sale.Classes;
using BiskLog_Point_Of_Sale.Company_Setup;
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.POSDialogs
{
    public partial class HeldTransactions : Form
    {
        private List<HeldItems> held { get; set; } = new List<HeldItems>();
        public List<HeldItems> selectedheld { get; set; } = new List<HeldItems>();
        List<string> added = new List<string>();
        DatabaseConn conn = new DatabaseConn();
        SqlConnection cn;
        SqlCommand cm;
        SqlDataReader dr;
        public HeldTransactions()
        {
            InitializeComponent();
            cn = new SqlConnection(conn.MyConnection());
            holding.Left = (ClientSize.Width - holding.Width) / 2;
            holding.Top = (ClientSize.Height - holding.Height) / 2;
        }
        private async Task GetHeld()
        {
            held.Clear();
            cn.Open();
            cm = new SqlCommand("Exec usp_get_held_sales @BranchID = @branchID,@month=@dateMonth,@year=@dateYear,@day=@dateDay", cn);
            cm.Parameters.AddWithValue("@dateYear", date.Value.Year);
            cm.Parameters.AddWithValue("@dateMonth", date.Value.Month);
            cm.Parameters.AddWithValue("@dateDay", date.Value.Day);
            cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
            dr = cm.ExecuteReader();
            while (dr.Read())
            {
                held.Add(new HeldItems
                {
                    branchID = Settings.Default.BranchID,
                    cashier = dr["cashier"].ToString(),
                    customerID = dr["customerID"].ToString(),
                    date = DateTime.Now.ToString(),
                    discount = dr["discount"].ToString(),
                    distinctive = !String.IsNullOrEmpty(dr["distinctive"].ToString())? dr["distinctive"].ToString(): dr["productID"].ToString(),
                    id = dr["productID"].ToString(),
                    invoiceID = dr["invoiceID"].ToString(),
                    pcode = dr["productID"].ToString(),
                    price = dr["price"].ToString(),
                    quantity = dr["quantity"].ToString(),
                    total = dr["total"].ToString(),
                    transno = dr["transactionID"].ToString(),
                    unit = dr["unit"].ToString(),
                    rowid = dr["Customer Name"].ToString(),
                    countID = dr["Product"].ToString(),
                    status = dr["unitName"].ToString(),
                });
            }
            dr.Close();
            cn.Close();
            return;
        }
        private int CancelHeld()
        {
            cn.Open();
            cm = new SqlCommand("Exec usp_remove_held_transaction @BranchID = @branchID,@heldTransno=@held", cn);
            cm.Parameters.AddWithValue("@held", selectedheld.FirstOrDefault().transno);
            cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
            cm.ExecuteNonQuery();
            cn.Close();
            return 1;
        }

        private async void HeldTransactions_Load(object sender, EventArgs e)
        {
            transactionHeld.Rows.Clear();
            holding.Visible = true;
            await GetHeld();
            int i = 1;
            foreach (HeldItems items in held)
            {
                if (!added.Contains(items.transno))
                {
                    added.Add(items.transno);
                    transactionHeld.Rows.Add(i, items.transno, items.rowid, items.date, Settings.Default.currrencyCode + " " + items.total);
                    i++;
                }
            }

            holding.Visible = false;
        }

        private void transactionHeld_CellClick(object sender, DataGridViewCellEventArgs d)
        {
            detailsPanel.Rows.Clear();
            if (d.RowIndex != -1)
            {
                string ID = transactionHeld.Rows[d.RowIndex].Cells[1].Value.ToString();
                selectedheld = this.held.Where((e) => e.transno == ID).ToList();
                foreach (HeldItems held in this.held.Where((e) => e.transno == ID))
                {
                    detailsPanel.Rows.Add(held.countID, held.quantity, held.status, held.total);
                }
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.DialogResult = DialogResult.Yes;
            this.Close();
        }

        private async void button2_Click(object sender, EventArgs e)
        {
            holding.Visible = true;
            Task<int> task = new Task<int>(CancelHeld);
            task.Start();
            await task;
            holding.Visible = false;
        }
    }
}