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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();
        }

        [Serializable]
        public class data
        {
            public string name { get; set; }
            public string surname { get; set; }
            public string city { get; set; }
            public string number { get; set; }
        }

        private void toolStripMenuItem1_Click(object sender, EventArgs e)
        {

        }

        private void saveToolStripMenuItem_Click(object sender, EventArgs e)
        {
            GRID.EndEdit();
            SaveFileDialog saveFileDialog1 = new SaveFileDialog();
            saveFileDialog1.RestoreDirectory = true;
            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
            {
                BinaryFormatter formatter = new BinaryFormatter();
                FileStream output = new FileStream(saveFileDialog1.FileName, FileMode.OpenOrCreate, FileAccess.Write);
                int n = GRID.RowCount - 1;
                data[] Person = new data[n];

                for (int i = 0; i < n; i++)
                {
                    var tempData = new data();
                    var v = GRID[0, i].Value;
                    tempData.name = v != null ? v.ToString() : string.Empty;

                    v = GRID[1, i].Value;
                    tempData.surname = v != null ? v.ToString() : string.Empty;

                    v = GRID[2, i].Value;
                    tempData.city = v != null ? v.ToString() : string.Empty;

                    v = GRID[3, i].Value;
                    tempData.number = v != null ? v.ToString() : string.Empty;

                    Person[i] = tempData;
                }
                formatter.Serialize(output, Person);
                output.Close();
            }
        }

        private void openToolStripMenuItem_Click(object sender, EventArgs e)
        {
            openFileDialog1 = new OpenFileDialog();
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                BinaryFormatter reader = new BinaryFormatter();
                FileStream input = new FileStream(openFileDialog1.FileName, FileMode.Open, FileAccess.Read);
                data[] Person = (data[])reader.Deserialize(input);
                GRID.Rows.Clear();
                var bindingList = new BindingList<data>();
                for (int i = 0; i < Person.Length; i++)
                {
                    var p = Person[i];
                    bindingList.Add(new data() { name = p.name, surname = p.surname, city = p.city, number = p.number });

                }
                GRID.DataSource = bindingList;
                input.Close();
            }
        }

        private void closeToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

    }
}