Work in the disconnect environment

[anhtuan.songhong]

Code Form1

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace FarmADO

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

            initData();

        }

        private static string FILENAME = "D:\\Farm.xml";

        FarmDS.FarmDataTable dtFarms = new FarmDS.FarmDataTable();

        public FarmDS.FarmDataTable DtFarms

        {

            get { return dtFarms; }

            set { dtFarms = value; }

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            dtFarms.PrimaryKey = new DataColumn[] { dtFarms.Columns["Id"] };

            if (System.IO.File.Exists(FILENAME))

                dtFarms.ReadXml(FILENAME);

        }

        private void initData()

        {

        }

        private void btnAdd_Click(object sender, EventArgs e)

        {

            int id = int.Parse(txtId.Text);

            FarmDS.FarmRow row = (FarmDS.FarmRow)dtFarms.Rows.Find(id);

            if (row == null)

            {

                row = dtFarms.NewFarmRow();

                row.Id = id;

                row.Name = txtName.Text;

                row.Address = txtAddress.Text;

                row.Owner = txtOwner.Text;

                dtFarms.AddFarmRow(row);

                dtFarms.WriteXml(FILENAME);

            }

        }

    }

}