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;
using System.Threading;

namespace SocketServer
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        DataSet myDs = new DataSet();

        private Thread threadOne;
        private Thread threadTwo;

        private void Form1_Load(object sender, EventArgs e)
        {
            DataTable ta = new DataTable("ta");
            ta.Columns.Add(groupColumn("cName", "System.String"));
            myDs.Tables.Add(ta);
            DataRow ra = ta.NewRow();
            ra["cName"] = "a";
            ta.Rows.Add(ra);

            DataTable tb = new DataTable("tb");
            tb.Columns.Add(groupColumn("cName", "System.String"));
            myDs.Tables.Add(tb);
            DataRow rb = tb.NewRow();
            rb["cName"] = "b";
            tb.Rows.Add(rb);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            threadOne = new Thread(new ThreadStart(Runa));
            threadTwo = new Thread(new ThreadStart(Runb));
            threadOne.Start();
            threadTwo.Start();
        }

        private void Runa()
        {
            while (true)
            {
                if (DateTime.Now.Second == 30)
                {
                    myDs.Tables["ta"].Rows[0]["cName"] = "aa";
                    break;
                }

                Thread.Sleep(1000);
            }

            //Monitor.Enter(this);//锁定，保持同步

            //myDs.Tables["ta"].Rows[0]["cName"] = "aa";

            //Monitor.Exit(this);//取消锁定
            //Thread.Sleep(5);
        }

        private void Runb()
        {
            while (true)
            {
                if (DateTime.Now.Second == 30)
                {
                    myDs.Tables["tb"].Rows[0]["cName"] = "bb";
                    break;
                }

                Thread.Sleep(1000);
            }

            //Monitor.Enter(this);//锁定，保持同步

            //myDs.Tables["tb"].Rows[0]["cName"] = "bb";

            //Monitor.Exit(this);//取消锁定
            //Thread.Sleep(5);
        }


        private void button2_Click(object sender, EventArgs e)
        {
            MessageBox.Show(myDs.Tables["ta"].Rows[0]["cName"].ToString() + " " + myDs.Tables["tb"].Rows[0]["cName"].ToString());
        }

        private System.Data.DataColumn groupColumn(string ColumnName, string strType)
        {
            using (System.Data.DataColumn column = new System.Data.DataColumn())
            {
                column.DataType = System.Type.GetType(strType);
                column.ColumnName = ColumnName;
                return column;
            }
        }
    }
}