Stockinfo/StockInfo/frmSelling.cs

using DataDomain;
using Helpers;
using StockDAL.Interface;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace StockInfo
{
    public partial class frmSelling : Form
    {
        private readonly IStockRepository _stockRepository;
        private List<StockMember> remainingStocks = new ();
        public StockMember stkMemSelected { get; set; } = null;

        public frmSelling(IStockRepository stockRepository )
        {
            InitializeComponent();
            _stockRepository = stockRepository;
        }

        private void frmSelling_Load(object sender, EventArgs e)
        {
            remainingStocks = _stockRepository.GetAllRemainingStocks().ToList();
            foreach(var stock in remainingStocks)
            {
                var lvRow = lvSellCandidates.Items.Add(stock.StockId);
                lvRow.Tag = stock.Id;
                lvRow.SubItems.Add(stock.BuyDate.ToShortDateString());
                lvRow.SubItems.Add(stock.BuyValue.ToString());
                lvRow.SubItems.Add(stock.ActAmount.ToString());
                lvRow.SubItems.Add(stock.ActValue.ToString());
                lvRow.SubItems.Add((stock.ActValue * stock.ActAmount).ToString());
            }
        }

        private void SelectStock(object tag)
        {
            //Debug.WriteLine($"selected item {(int)tag}");
            foreach(var remStk in remainingStocks)
            {
                if(remStk.Id == (int)tag)
                {
                    stkMemSelected = remStk;
                    break;
                }
            }

            EditStockForSelling(stkMemSelected);
        }

        private void EditStockForSelling(StockMember stkMemSelected)
        {
            txtId.Text = stkMemSelected.Id.ToString();
            txtStockId.Text = stkMemSelected.StockId;
            txtBuyDate.Text = stkMemSelected.BuyDate.ToShortDateString();
            txtBuyNumber.Text = stkMemSelected.PostAmount.ToString();
            txtBuyPrice.Text = stkMemSelected.BuyValue.ToString();
            txtBuyValue.Text = (stkMemSelected.BuyValue * stkMemSelected.PostAmount).ToString();

            txtSoldDate.Text = DateTime.Today.ToShortDateString();
            txtSoldPrice.Text = stkMemSelected.ActValue.ToString();
            txtSoldAmount.Text = stkMemSelected.ActAmount.ToString();
        }


        private void lvSellCandidates_MouseUp(object sender, MouseEventArgs e)
        {
            var selRows = lvSellCandidates.SelectedItems;
            SelectStock(selRows[0].Tag);
        }

        private void txtSoldPrice_TextChanged(object sender, EventArgs e)
        {
            CalcNumberAndValue();
        }

        private void CalcNumberAndValue()
        {
            if (txtSoldPrice.Text.IsNumeric() && txtSoldAmount.Text.IsNumeric())
            {
                txtSellValue.Text = (decimal.Parse(txtSoldPrice.Text) * long.Parse(txtSoldAmount.Text)).ToString();
                txtRemainingNo.Text = (stkMemSelected.PostAmount - long.Parse(txtSoldAmount.Text)).ToString();
            }
        }

        private void txtSoldAmount_TextChanged(object sender, EventArgs e)
        {
            CalcNumberAndValue();
        }
    }
}