Biskilog/BISKILOG POS PREMIUM/Cashier Module/Invoice/InvoiceDialog.cs

using BiskLog_Point_Of_Sale.Classes;
using BiskLog_Point_Of_Sale.Properties;
using Point_Of_Sale_Managment;
using Point_Of_Sale_Managment.Cashier_Module.Invoice;
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.Invoice
{
    public partial class CashierInvoiceDialog : Form
    {
        CashierInvoiceMain invoiceMain;
        SqlConnection cn;
        SqlCommand cm;
        SqlDataReader dr;
        DatabaseConn conn = new DatabaseConn();
        public CashierInvoiceDialog(CashierInvoiceMain main, string id, string totalCost, string status)
        {
            InitializeComponent();
            cn = new SqlConnection(conn.MyConnection());
            invoiceMain = main;
            lblInvoice.Text = id;
            lblTotalCost.Text = totalCost;
            if (status == "SOLD")
            {
                button1.Enabled = false;
            }
            else
            {
                button1.Enabled = true;
            }
            holding.Left = (ClientSize.Width - holding.Width) / 2;
        }

        private void CloseBTN_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void CloseBTN_MouseEnter(object sender, EventArgs e)
        {
            closeBTN.BackColor = Color.Crimson;
        }

        private void CloseBTN_MouseLeave(object sender, EventArgs e)
        {
            closeBTN.BackColor = Color.Transparent;
        }
        public int LoadInvoice()
        {
            try
            {
                int i = 1;
                invoiceDetails.Invoke(new Action(() =>
                {
                    invoiceDetails.Rows.Clear();
                    cn.Open();
                    cm = new SqlCommand("Select I.pcode,P.product_name,I.quantity,I.totalprice,uni.unitname,I.unit,P.baseUnit from tblInvoice I Inner Join tblProduct P On " +
                        "P.pcode = I.pcode Inner Join UnitOfMeasure uni On uni.unitCode = I.unit where I.invoiceID = @invoiceID and I.branchID = @branchID " +
                        "Select I.pcode,P.product_name,I.quantity,I.totalprice,uni.unitname,I.unit,PAU.distinctiveCode from tblInvoice I Inner Join tblProduct P On " +
                        "P.pcode = I.pcode Inner Join UnitOfMeasure uni On uni.unitCode = I.unit Inner Join ProductAltUnit PAU On PAU.unitCode = I.unit and PAU.pcode = I.pcode " +
                        "where I.invoiceID = @invoiceID and I.branchID = @branchID", cn);
                    cm.Parameters.AddWithValue("@invoiceID", lblInvoice.Text);
                    cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                    cm.ExecuteNonQuery();
                    dr = cm.ExecuteReader();
                    while (dr.Read())
                    {
                        if (dr[5].ToString().Equals(dr[6].ToString()))
                        {
                            invoiceDetails.Rows.Add(i, dr[0].ToString(), dr[1].ToString(), dr[2].ToString(), dr[4].ToString()
                                , Settings.Default.currrencyCode + " " + dr[3].ToString(), dr[5].ToString(), dr[0].ToString());
                            i++;
                        }
                    }
                    dr.NextResult();
                    while (dr.Read())
                    {
                            invoiceDetails.Rows.Add(i, dr[0].ToString(), dr[1].ToString(), dr[2].ToString(), dr[4].ToString()
                                , Settings.Default.currrencyCode + " " + dr[3].ToString(), dr[5].ToString(), dr[6].ToString());
                            i++;
                    }
                    dr.Close();
                    cn.Close();
                }));
                return 1;
            }
            catch
            {
                cn.Close();
                return 0;
            }
        }

        private async void InvoiceDialog_Load(object sender, EventArgs e)
        {
            Task<int> task = new Task<int>(LoadInvoice);
            holding.Visible = true;
            task.Start();
            await task;
            holding.Visible = false;
        }
        private List<InvoicePOS> getList()
        {
            List<InvoicePOS> invoices = new List<InvoicePOS>();
            foreach (DataGridViewRow row in invoiceDetails.Rows)
            {
                decimal total = decimal.Parse(row.Cells[5].Value.ToString().Substring(Settings.Default.currrencyCode.Length));
                int quantity = int.Parse(row.Cells[3].Value.ToString());
                decimal unit = total / quantity;
                InvoicePOS invoice = new InvoicePOS(
                   productCode: row.Cells[1].Value.ToString(), quantity: quantity,
                   totalprice: total, unitprice: unit,
                   productname: row.Cells[2].Value.ToString(),
                   unitCode: row.Cells[6].Value.ToString(),
                   unitName: row.Cells[4].Value.ToString(),
                   distinctiveCode: row.Cells[7].Value.ToString()
                    );
                invoices.Add(invoice);
               

            }
            return invoices;
        }
        private void Button1_Click(object sender, EventArgs e)
        {
            string id = "";
            lblInvoice.Invoke(new Action(() => id = lblInvoice.Text));
            invoiceMain.ShowSalesPOS(this, getList(), lblInvoice.Text);
        }
    }
}