FavsForm.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace Project_Mockup
{
    public partial class FavsForm : Form
    {
        string activeUser ="";
        public FavsForm(string a)
        {
            InitializeComponent();
            activeUser = a;
            txtUser.Text = a;
            SetUpGrid();
        }

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

        private void SetUpGrid()
        {
            //Sets the grid up based on the user's accountname (only their cars in the list)
            gridCarList.Rows.Clear();
            gridCarList.Refresh();
            int row = 0;
            List<string> carLines = File.ReadAllLines(activeUser+".txt").ToList();
            foreach (string line in carLines)
            {
                if (line != "")
                {
                    string[] entries = line.Split('/');
                    gridCarList.Rows.Add();
                    DataGridViewRow rows = gridCarList.Rows[row];

                    string preview = entries[9];
                    Image listingImage = Image.FromFile(preview);

                    listingImage = listingImage.GetThumbnailImage(200, 100, null, IntPtr.Zero);

                    rows.Height = listingImage.Height;

                    carListing allocateCars = new carListing();
                    rows.Cells[1].Value = row + 1;
                    rows.Cells[2].Value = listingImage;
                    rows.Cells[3].Value = entries[0];
                    rows.Cells[4].Value = entries[1];
                    rows.Cells[5].Value = Int32.Parse(entries[2]);
                    rows.Cells[6].Value = Int32.Parse(entries[3]);
                    rows.Cells[7].Value = entries[4];
                    rows.Cells[8].Value = entries[5];
                    rows.Cells[9].Value = Int32.Parse(entries[6]);
                    rows.Cells[10].Value = entries[8];
                    row++;
                }
                
            }
        }

        private void gridCarList_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

            List<string> carLines = File.ReadAllLines(activeUser+".txt").ToList();
            List<carListing> currentSearch = new List<carListing>();

            foreach (string line in carLines)
            {
                string[] entries = line.Split('/');

                carListing allocateCars = new carListing();

                allocateCars.make = entries[0];
                allocateCars.model = entries[1];
                allocateCars.year = Int32.Parse(entries[2]);
                allocateCars.kilometers = Int32.Parse(entries[3]);
                allocateCars.colour = entries[4];
                allocateCars.transmission = entries[5];
                allocateCars.price = Int32.Parse(entries[6]);
                allocateCars.owner = entries[7];
                allocateCars.listDate = entries[8];
                currentSearch.Add(allocateCars);
            }

            var senderGrid = (DataGridView)sender;

            if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn &&
                e.RowIndex >= 0)
            {
                var info = senderGrid.Rows[e.RowIndex].Cells["DateTime"].Value.ToString();
                carListing click = currentSearch.Find(x => x.listDate.Contains(info)); // THIS IS THE SEARCH
                // Open form for specific row
                listInfo showCar = new listInfo(click.listDate, activeUser);
                var result = showCar.ShowDialog();
                if (result == DialogResult.OK)
                {
                    showCar.Close();
                }
                else
                {
                    showCar.Close();
                }
            }
        }
    }
}