IAsyncResult 接口异步 和匿名委托

private void Form1_Load(object sender, EventArgs e)

{

///控件属性来处理

Control.CheckForIllegalCrossThreadCalls = false;

}

       DataSet ds = new DataSet();
        Mydelegate del = new Mydelegate(LoadData);
        IAsyncResult result = del.BeginInvoke(null, null);
        ds = del.EndInvoke(result);
        gridControl1.DataSource = ds.Tables[0];

      this.Invoke((EventHandler)delegate
        {
         labMessage.Text = "数据填充中......";
        });

    /// <summary>
    /// Invoke 修改主线程控件的属性
    /// </summary>
    /// <param name="strMsg"></param>
    delegate void SafeSetText(string strMsg);
    private void SetText(string strMsg)
    {

        if (textBox1.InvokeRequired)
        {
            SafeSetText objSet = new SafeSetText(SetText);
            textBox1.Invoke(objSet, new object[] { strMsg });

        }
        else
        {
            textBox1.Text = strMsg;
        }
    }

    /// <summary>
    /// 匿名委托
    /// </summary>
    /// <param name="strMsg"></param>
    delegate void SafeSetText(string strMsg);
    private void SetText2(string strMsg)
    {
        SafeSetText objSet = delegate(string str)
         {
             textBox1.Text = str;
         };
        textBox1.Invoke(objSet, new object[] { strMsg });
    }

      ///3.0及以后的版本中有了Lamda表达式
        this.Invoke(new Action(() =>
        {
            textBox1.Text = "关闭";

        }));

   Thread invokeThread;
    private void button1_Click(object sender, EventArgs e)
    {

        ////执行输出顺序：AAA  CCC  EEE  BBB DDD
        string DataTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + "AAA" + " " + DataTime);
        invokeThread = new Thread(new ThreadStart(StartMethod));
        invokeThread.Start();
        string a = string.Empty;
        for (int i = 0; i < 3; i++)      //调整循环次数，看的会更清楚
        {
            //Thread.Sleep(1000);
            a = a + "B";
        }
        string DataTime2= DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + a + " " + DataTime2);
    }

    private void StartMethod()
    {
        string DataTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + "CCC" + " " + DataTime);
        button1.Invoke(new Action(invokeMethod),new Object[]{});
        string DataTime2 = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + "DDD" + " " + DataTime2);
    }

    private void invokeMethod()
    {

        //Thread.Sleep(3000);
        string DataTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + "EEE" + " " + DataTime);
    }

    Thread begingInvoke;
    private void button2_Click(object sender, EventArgs e)
    {
        string DataTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + "AAA" + " " + DataTime);
        begingInvoke = new Thread(new ThreadStart(begingInvokeStartMethod));
        begingInvoke.Start();
        string a = string.Empty;
        for (int i = 0; i < 3; i++)      //调整循环次数，看的会更清楚
        {
            //Thread.Sleep(1000);
            a = a + "B";
        }
        string DataTime2 = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + a + " " + DataTime2);
    }
    private void begingInvokeStartMethod()
    {
        string DataTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + "CCC" + " " + DataTime);
        button1.BeginInvoke(new Action(begingInvokeMethod),new Object[]{});
        string DataTime2 = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + "DDD" + " " + DataTime2);
    }

    private void begingInvokeMethod()
    {
        string DataTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.ff");
        MessageBox.Show(Thread.CurrentThread.GetHashCode().ToString() + "EEE" + " " + DataTime);
    }